S-005

NORSOK STANDARD

MACHINERYWORKING ENVIRONMENT ANALYSES AND DOCUMENTATION

S-005 Rev. 1, March 1999

This NORSOK standard is developed by NTS with broad industry participation. Please note that whilst every effort has been made to ensure the accuracy of this standard, neither OLF nor TBL or any of their members will assume liability for any use thereof. NTS is responsible for the administration and publication of this standard. Norwegian Technology Standards Institution Oscarsgt. 20, Postbox 7072 Majorstua N-0306 Oslo, NORWAY Telephone: + 47 22 59 01 00 Fax: + 47 22 59 01 29 Email: [email protected] Website: http://www.nts.no/norsok Copyrights reserved

Machinery - Working Environment Analyses and Documentation

S-005 Rev. 1, March 1999

CONTENTS FOREWORD

3

1

SCOPE

4

2

NORMATIVE REFERENCES

4

3

DEFINITIONS AND ABBREVIATIONS

4

4

3.1

Definitions

4

3.2

Abbreviations

5

RESPONSIBILITIES

5

4.1

Contractors

5

4.2 Suppliers 4.2.1 Supplier of Machinery 4.2.2 Supplier of Sub-assembly 5

6 6 6

WORKING ENVIRONMENT DOCUMENTATION

8

5.1

General

8

5.2

Risk Assessments

8

5.3

Working Environment Design Reviews

9

5.4

Chemical Inventory and Safety Data Sheets

9

5.5 Noise and Vibration Data 5.5.1 Noise Data Sheets 5.5.2 Vibration Data 6

10 10 10

RISK ASSESSMENT

12

6.1

Process overview

12

6.2

Determine responsibilities

13

6.3

Determine machinery limits (step 1)

13

6.4

Establish assessment team (step 2)

14

6.5

Identify and describe manual tasks (step 3)

14

6.6

Identify and describe hazards (step 4)

14

6.7

Estimate and evaluate risk (step 5)

15

ANNEX A BASIC CONCEPTS (INFORMATIVE)

18

A.1 Scope and Objectives

18

A.2 WE Requirements, Analyses and Documentation

19

A.3 Methods to remove hazards of machinery

21

ANNEX B

NOISE AND VIBRATION MEASUREMENTS (INFORMATIVE)

22

B.1 Noise Verification Measurements

22

B.2 Structureborne Noise

23

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ANNEX C DETERMINATION OF WORKING ENVIRONMENT (WE) DOCUMENTATION RESPONSIBILITIES (INFORMATIVE)

24

ANNEX D HAZARDS AND HAZARDOUS SITUATIONS (INFORMATIVE)

25

ANNEX E FORM FOR DOCUMENTATION OF RISK ASSESSMENTS (INFORMATIVE)

29

ANNEX F

31

FORM FOR CHEMICAL INVENTORY (INFORMATIVE)

ANNEX G WORKING ENVIRONMENT (WE) DESIGN REVIEW CHECKLIST (INFORMATIVE)

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FOREWORD NORSOK (The competitive standing of the Norwegian offshore sector) is the industry initiative to add value, reduce cost and lead time and eliminate unnecessary activities in offshore field developments and operations. The NORSOK standards are developed by the Norwegian petroleum industry as a part of the NORSOK initiative and supported by OLF (The Norwegian Oil Industry Association) and TBL (Federation of Norwegian Engineering Industries). NORSOK standards are administered and issued by NTS (Norwegian Technology Standards Institution). The purpose of NORSOK standards is to contribute to meet the NORSOK goals, e.g. by replacing individual oil company specifications and other industry guidelines and documents for use in existing and future petroleum industry developments. The NORSOK standards make extensive references to international standards. Where relevant, the contents of a NORSOK standard will be used to provide input to the international standardisation process. Subject to implementation into international standards, the NORSOK standard will be withdrawn. Annexes are informative.

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1

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SCOPE

This NORSOK standard addresses methods for working environment analyses and documentation of machinery according to machinery regulations and the normative references. The methods may also be used for other technical products having similar hazards. The scope and objectives of this standard are elaborated in Annex A1.

2

NORMATIVE REFERENCES

The following standards include provisions which, through reference in this text, constitute provisions of this NORSOK standard. Latest issue of the references shall be used unless otherwise agreed. Other recognised standards may be used provided it can be shown that they meet or exceed the requirements of the standards referenced below. NS-EN 292 – Part 1 Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology NS-EN 292 – Part 2 Safety of machinery - Basic concepts, general principles for design – Part 2: Technical principles and specifications (as amended) NS-EN 1050 Safety of machinery - Principles for risk assessment NORSOK S-002 Working Environment

3

DEFINITIONS AND ABBREVIATIONS

3.1

Definitions

Declaration of Conformity: Declaration issued by the manufacturer of machinery (or his EU/EFTA representative) to document conformity with the requirements of Machinery regulations; cf. Norwegian Labour Inspection order no. 522. Declaration of Incorporation: Declaration issued by the manufacturer of sub-assembly (or his EU/EFTA representative) to document conformity with the requirements of Machinery regulations; cf. Norwegian Labour Inspection order no. 522. Design review: A systematic and documented examination of a design to evaluate its capability to fulfil specific requirements. Machinery: As defined in Machinery regulations, the term machinery comprises various types of individual machines and assembly of machines, distinguished by the ability to perform a specific application, as well as interchangeable equipment; cf. Norwegian Labour Inspection order no. 522 §2 (with explanatory notes): - An assembly of linked parts or components, at least one of which moves, with (i.e. fitted with or intended to be fitted with) the appropriate actuators, control and power circuits,

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-

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etc., joined together for a specific application, in particular for the processing, treatment, moving or packaging of a material. An assembly of machines which in order to achieve the same end, are arranged and controlled so that they function as an integral whole. Interchangeable equipment modifying the function of a machine.

Risk assessment: A documented and systematic process of identification and assessment of hazards related to specified work tasks, including estimation of frequency and consequence of accidents / harmful effects for the personnel involved. Risk assessments are used as a basis for evaluation of the need for and selection of safety measures. Safety data sheet: Documentation of the safety, health and environment hazards of a chemical product according to the regulations relating to ‘Compilation and distribution of safety data sheets for dangerous chemicals’; cf. Norwegian Labour Inspection order no. 548. Shall: Verbal form used to indicate requirements strictly to be followed in order to conform to the standard and from which no deviation is permitted, unless accepted by all involved parties. Should: Verbal form used to indicate that among several possibilities one is recommended as particularly suitable, without mentioning or excluding others, or that a certain course of action is preferred but not necessarily required. Sub-assembly: A machine that cannot function independently, and that is intended for incorporation into machinery. Working environment: As defined in NORSOK S-002: - The totality of all physical, chemical, biological and psychological factors at work that may affect the employees’ health and well being through acute trauma or lasting exposure. The influences from lasting exposure may be positive and negative. 3.2 PO WE

4

Abbreviations Purchase Order Working environment

RESPONSIBILITIES

The following responsibilities apply with respect to execution of analyses and delivery of working environment (WE) documentation for machinery: 4.1

Contractors

The responsibilities of a company working for Client according to contract are described below. Various contract strategies may apply, including engineering, procurement, construction, installation, and/or commissioning. Typical deliveries from principal contractors are offshore platforms, pipelines, and sub-sea installations. A principal contractor may use

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various sub-contractors. Typical deliveries from sub-contractors are living quarters, drilling modules, and process modules. For each subject machinery within Contractor’s scope of work, the Contractor shall ensure that the boundaries of machinery and sub-assemblies and the responsibilities for issue of statutory declarations and indicators (e.g. instructions, CE-marking) are defined. Further, the Contractor shall ensure that the requirements for WE documentation are determined and specified in sub-contract and/or Purchase Orders (POs); cf. clause 5. The Contractor shall also: • provide the interface information necessary for execution of risk assessments (e.g. informations regarding control systems, utility systems, energy supply) to sub-contractors and/or Suppliers; • specify risk estimation criteria other than the criteria in clause 6.7, if necessary to meet the risk acceptance criteria for the overall occupational accident risk in the area; • specify noise level limits on noise data sheets, request the procedures for verification of Supplier guaranteed noise levels, and request necessary vibration data; cf. clause 5.5; • ensure that working environment documentation of adequate quality are received from sub-contractors and/or Suppliers; • forward aggregated WE documentation to Client. 4.2 4.2.1

Suppliers Supplier of Machinery

Supplier of machinery is responsible for the safety of the machine and for providing the ‘Declaration of Conformity’ and the ‘Instructions’ issued according to machinery regulations; cf. clause 5.1. Further, the Supplier shall ensure that the necessary WE analyses of subject machinery are executed and documented. The Supplier shall also: • identify the interface information necessary for execution of risk assessments (e.g. information regarding control systems, energy supply), and request any lacking information from Contractor; • identify and implement all WE requirements applicable to design, construction and documentation of subject delivery; cf. NS-EN 292, NORSOK S-002 and normative references hereto, and the basic concepts outlined in Annex A2; • define sub-suppliers’ responsibilities for WE documentation in POs; • ensure that documentation of adequate quality is received from sub-suppliers. As specified in sub-contract or PO, the Supplier shall compile and provide the required technical WE documentation; cf. clause 5. 4.2.2 Supplier of Sub-assembly Supplier of sub-assembly is responsible for the safety of the sub-assembly and for providing the ‘Declaration of Incorporation’ issued according to machinery regulations.

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As specified in PO, the Supplier shall provide the documentation necessary to demonstrate conformity with machinery regulations, normative standards, and other WE requirements.

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5

WORKING ENVIRONMENT DOCUMENTATION

5.1

General

S-005 Rev. 1, March 1999

As stipulated in the Machinery regulations, subject machinery shall bear CE marking and the following documentation shall be provided: • ‘Declaration of Conformity’. • ‘Instructions’ for safe use, etc. Instructions for regular use and maintenance by operators shall be in the Norwegian language. Additional technical WE documentation is required according to the regulations and normative standards applicable to offshore machinery. Requirements and responsibilities for provision of WE documentation shall be determined and documented. If not otherwise agreed in sub-contract or PO, the aggregated WE documentation for subject machinery shall include: • Risk assessment report; cf. clause 5.2. • WE design reviews checklists; cf. clause 5.3. • Inventory and safety data sheets for chemicals; cf. clause 5.4. • Noise data sheets and vibration data; cf. clause 5.5. Basic concepts regarding WE requirements, analyses and documentation are elaborated in Annex A2. A typical form for documenting the requirements for WE documentation and responsibility determinations is included in Annex C. 5.2

Risk Assessments

The technical documentation to the ‘Declaration of Conformity’ shall include a description of the methods chosen to remove hazards of the machinery. Risk assessments to examine the hazards and specify necessary safety measures are an integral part of these methods; cf. Annex A3. Risk assessments shall be executed during development of the design, to ensure integration of safety and conformity with the functional WE requirements applicable to subject machinery. A method for risk assessments during design of machinery, based on the principles of NS-EN 292-1 and NS-EN 1050, is described in more detail in clause 6 of this standard. The risk assessments of machinery shall be documented in risk assessment reports, providing information about any: • dangerous manual tasks / interactions; cf. clause 6.5 • hazards and hazardous situations / events; cf. clause 6.6 • risk estimates; cf. clause 6.7 • safety measures in design and/or operations; cf. clause 6.7 A typical form for documenting risk assessments is included in Annex E. In addition to the risk assessment method described in clause 6, there may be needs for special methods to analyse hazards and estimate risks of complex and/or safety critical machinery. Methods outlined in NS-EN 1050 and NORSOK S-002 are referred to, e.g.: NORSOK standard

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Machinery - Working Environment Analyses and Documentation • • • • 5.3

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Failure Mode and Effects Analysis (FMEA) or Fault Tree Analysis (FTA), to document reliability of control and safety systems; cf. NS-EN 1050 Annex B; Ergonomic job / task analysis, to document risks of muscle-skeletal injuries; cf. NORSOK S-002 clause 4.9.4 and Annex I. Crisis Intervention in Offshore Production (CRIOP) analysis, to document man-machine interface of control rooms; cf. NORSOK S-002 clause 4.9.5 and Annex I; Chemical handling analysis, to document risks of exposure to hazardous chemicals; cf. NORSOK S-002 clause 4.9.6 and Annex I. Working Environment Design Reviews

Design reviews are required to verify conformity with the specific WE requirements applicable to subject machinery and to identify any needs for corrective measures. Such WE design reviews shall be executed during development of the design, and shall be documented by completion of checklists. To provide input to the design, a first design review should be performed as part of early engineering, and this checklist should at least be updated prior to construction. The personnel/team performing WE design reviews shall have adequate working environment qualifications, and shall be familiar with operation and maintenance activities associated with the machinery. A typical WE design review checklist for offshore machinery, based on specific WE requirements in the normative references, is included in Annex G. • The checklist covers a broad specter of specific WE requirements. Thus, some requirements may be not applicable for certain deliveries. • Completion of this checklist does not exempt Suppliers from the responsibility to identify and verify other specific requirements applicable to subject delivery, e.g. requirements in relevant type B European standards (to be identified by Supplier). • Typical users of the checklist are the suppliers and sub-suppliers of machinery, and also contractors with an overall responsibility for the design, e.g. engineering companies. • The checklist may also be used for WE inspections during construction and mechanical completion; cf. NORSOK S-002 clause 4.11. 5.4

Chemical Inventory and Safety Data Sheets

All chemical substances and preparations that are contained within machinery boundaries and/or are planned to be used in connection the machinery shall be identified and documented in an inventory. Typical chemicals to be included are lube oils, grease, and preservation chemicals. Information regarding intended use, location and quantities shall be listed, along with reference to the safety data sheet. Also, the potential for personnel exposure, as identified in risk assessments or WE design reviews, shall be documented. A typical chemical inventory form is included in Annex F. Chemicals that follow the installation offshore or are included in instructions for operation and maintenance shall be documented on safety data sheets; cf. NORSOK S-002 clause 5.4.2. NORSOK standard

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The safety data sheets shall be in the Norwegian language and approved through the Norwegian Oil Industry Association’s quality assurance scheme for such data sheets. 5.5

Noise and Vibration Data

5.5.1 Noise Data Sheets For all potentially noisy machinery, noise data sheets with ‘Company specified data’ (noise level limits) are included in the inquiries; cf. NORSOK S-002 clause 4.8.2. A typical noise data sheet is included in NORSOK S-002 Annex H. One or more of the following noise data may be required: • Sound power level; • Sound pressure level at 1 m distance, free field condition; • Sound pressure level at operators position, free field condition. During engineering, the noise data sheet for subject machinery shall be completed with all the information required: • Equipment design data; • Guaranteed ‘Supplier data’ (noise levels), in the same format as the ‘Company specified data’; • Method for planned noise level test during fabrication (see below); • Description of all noise control measures that have been implemented in order to achieve a low noise design and meet the specified data. The recommended practice for the design of low noise machinery and equipment in standard ISO 11688 is referred to. • It should be stated whether the specified / guaranteed noise data applies to the complete machinery or to specific components or sub-assemblies. During fabrication, measurements to verify the guaranteed noise levels are required, unless data from previous tests on standard machinery can be accepted. The verification measurements shall be performed according to a documented test procedure, and should be executed or witnessed by a qualified noise control engineer. Recommended methods for noise level tests are described in Annex B1. The measurement results, incl. correction for measurement uncertainty, shall be documented in the noise data sheet. 5.5.2

Vibration Data

Maximum limits for continuous whole body vibration from machinery are given in NORSOK S-002 Annex E. The limits cover the range 1 - 80 Hz. When input data for structural vibration analysis are required, the following vibration data shall be provided: • Frequency of revolution (rpm). • Unbalance force and direction (N). • Weight of rotor (kg). • Total weigth of machinery, including frame (kg). For vibration isolated machinery the following data shall also be provided: NORSOK standard

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Machinery - Working Environment Analyses and Documentation • •

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Static and dynamic stiffness of each elastic support (N/m). Resonance frequencies for lumped mass machinery on stiff foundation, 6 degrees of freedom. a. Vertical translation frequency (Hz). b. The highest of the six resonance frequencies (Hz).

The degree of vibration isolation obtained will depend on the stiffness of the deck. If a specific value for vibration isolation insertion loss is required, the Supplier shall specify a minimum stiffness value for the deck at the support positions in N/m. If required, input data for analysis of structureborne noise from the machinery shall be provided. The data shall be given as vibration levels at the supports. Recommended methods for measurement and documentation of vibrations causing structureborne noise are described in Annex B2.

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6

RISK ASSESSMENT

6.1

Process overview

S-005 Rev. 1, March 1999

The main steps of a generally applicable method for risk assessments of machinery are shown in Figure 1. The steps are discussed in more detail in clauses 6.2 - 6.7 below. Basic concepts regarding this method to remove hazards of machinery are elaborated in Annex A3. The process shall be documented; a typical form for documentation of the assessment is included in Annex E.

To be initiated by principal Contractor, and to be retaken by sub-contractors and/or Determine responsibilities Suppliers until boundaries of all machinery re. Declaration of Conformity and responsibilities have been determined -----------------------------------------------------------------------------------------------------------------Risk Assessment: Step 1: Determine machinery limits To be performed by the party responsible for providing the Declaration of Conformity Step 2: Establish assessment team

Step 3: Identify and describe manual tasks

Step 4: Identify and describe hazards

Step 5: Estimate and evaluate risks

Figure 1 - Outline of the risk assessment process for machinery

The purpose of the risk assessment is to ensure timely implementation of necessary safety measures. It is essential to perform an initial / coarse examination of hazards and assessment before layout freeze and placement of major purchase orders (POs) for sub-deliveries. Responsibilities and limits should be determined before start of detailed engineering. The other steps should be initiated during early engineering, and should be performed and updated in more detail as the design develops and when modifications are required.

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Requirements for risk assessments as part of the aggregated working environment (WE) documentation shall be specified in the PO. A risk assessment performed for a previous delivery can be accepted, provided that the assessement meets the requirements in this standard and that the machinery design and operational modes are unchanged. Previously performed risk assessments shall be documented, together with an evaluation of the adequacy of this assessment for the recent application. Extent and level of detail of the risk assessment, as well as needs for updates as the design develops should be adapted to the category and complexity of the machinery / equipment, manual tasks, and hazards involved. 6.2

Determine responsibilities

According to Machinery regulations, the manufacturer or his representative, alternatively the vendor or the company responsible for assembling machines, is responsible for executing risk assessments and issuing the Declaration of Conformity; cf. Annex A2. Each machinery on the installation shall be subject to the risk assessment process, and for each machinery, the party responsible for executing and documenting the risk assessment shall be identified and documented; cf. clause 5.1 and Annex C. To achieve this, the boundaries between the various assembled machines, individual machines, and sub-assemblies must be identified. In particular, it is imperative to sort out interface issues and determine responsibilities with regard to an assembly of machines. • An assembly of machines may comprise individual machines and sub-assemblies which have to be assessed and documented both as part of the assembled unit and separately, typically when the machine / sub-assembly seen in isolation represents particular hazards, or when the design of the individual machine / sub-assembly is critical to the safety of the assembled unit. The principal Contractor shall initiate this activity, and shall ensure that allocation of responsibilities are agreed by Suppliers and/or sub-contractors for all the various machinery within his scope of work. Each Supplier has to evaluate to what extent his delivery is made up of machinery / sub-assemblies from sub-suppliers, and determine the corresponding risk assessment responsibilities. 6.3

Determine machinery limits (step 1)

The use, space and life time limitations of each subject machinery shall be identified in detail, and any interface issues resolved, prior to commencing the risk assessment. As relevant, the following information shall be collected and documented for the risk assessment: A. Description of the machinery (drawings, etc.). B. Definition and description of interfaces concerning physical arrangements, control system, power supply, and space requirements; e.g., by reviewing lay-out / arrangement drawings, process and instrument diagram (P&ID), electrical and instrument diagrams. C. Assumptions about installation arrangements and ambient conditions (indoor / outdoor climate, lighting, noise, vibration, etc.). D. Machinery life time, e.g., mean time to change of components, sub-assemblies, etc. E. Assumptions about the user (qualifications, etc.) F. Accident and health impairment statistics for subject or similar machinery. NORSOK standard

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6.4

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Establish assessment team (step 2)

To execute the risk assessment, a qualified assessment team shall be organised. The Supplier shall ensure that personnel representing the following competence participates on the team: • personnel familiar with operation and maintenance of the machinery; • relevant engineering disciplines (e.g., layout, mechanical, instrument, electrical); • working environment specialist with adequate qualifications (e.g. in ergonomics and/or industrial hygiene), the manual tasks and hazards taken into consideration. Operations and maintenance personnel from the Client’s organisation should be invited to participate. For machinery relying on the installation’s control and/or power supply systems for vital safety functions, the principal contractor’s instrument / electrical discipline should be invited as a member of the assessment team. 6.5

Identify and describe manual tasks (step 3)

Manual tasks and interactions where personnel may be present inside the danger zone of the machinery shall be identified and used as a basis for risk estimation and evaluation. A step-by-step breakdown of the tasks / activities to a sufficient level of detail shall be carried out and documented in the risk assessment form; cf. Annex E (column 2). The break down shall cover all operational modes and foreseeable uses, including: • normal operation, incl. start up and shut down; • cleaning; • inspection, incl. fault diagnosis; • maintenance, incl. repair and material handling. Handling of foreseeable operational disturbances, malfunctions and/or misuse during the various operational modes shall be subject to assessment. For remotely controlled or automatic machinery, the possibility of personnel being in the danger zone in event of a sudden start shall be included. The requirements for analysis of workplaces and tasks stipulated in NORSOK S-002 clause 4.9 are referred to. 6.6

Identify and describe hazards (step 4)

Hazards and hazardous situations / events associated with the various operational modes of the machinery shall be identified, incl. both hazards resulting in injuries as well as work related diseases. For an initial risk assessment, typical hazards and hazardous situations to consider for risk assessment are listed in Annex D. For more detailed assessments, the description and examples of hazards and hazardous situations / events in NS-EN 292-1 clause 4 and NS-EN 1050 Annex A are referred to.

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A description of each actual hazard and why a hazardous situation may arise shall be documented in the risk assessment form; cf. Annex E (column 3). 6.7

Estimate and evaluate risk (step 5)

Estimation of the risk from occupational accidents and/or lasting exposures serves as a basis for identifying needs of remedial actions, incl. safety measures / safeguarding in design. The risks are estimated and characterised by the assessment team, using professional judgement and any applicable rating criteria for the elements of risk. In the estimation, existing design safety measures shall be considered, but not operational measures such as the use of personal protective equipment. For hazards that can result in occupational injuries, Table 1 shows a typical risk matrix with rating criteria for the frequency of occurrence and consequences of hazardous situations. The criteria shall be applied unless otherwise instructed by Contractor. For each hazardous situation identified, the consequence (‘C’), frequency (’F’), and the resulting risk (’R’) shall be documented in the risk assessment form; cf. Annex E (columns 4-6). • First, the most serious consequence that from a realistic point of view may occur shall be identified and rated on a scale from 1 to 4. • Next, the expected frequency of the consequence shall be estimated, also on a scale from 1 to 4. Frequency estimations are based on frequency and duration of work or other presence inside danger zone of the machinery, probability of occurrence of the hazardous situation, and possibility to avoid or limit the harm. • Finally, the resulting risk shall be estimated and characterised as High, Medium or Low.

1 time per 100 years or less (1)

Consequence First-aid injury Lost time injury Permanent disability Fatality

Frequency 1 time per 10 1 time per years year (2) (3)

10 times per year or more (4)

(1)

Low

Low

Medium

High

(2)

Low

Medium

High

High

(3)

Medium

High

High

High

(4)

High

High

High

High

Table 1- Risk matrix for occupational accidents

For hazards where exposures can result in work-related diseases (e.g. ergonomics, materials and substances), rating criteria for use in a risk matrix have not been established and the judgement of the assessment team is referred to for risk characterisation. The exposure risk shall be estimated (as High, Medium or Low) and documented; cf. Annex E (column 6). • In case the Supplier has data related to the personnels’ overall exposures during a work shift, he shall perform detailed ergonomic and/or chemical handling analyses as specified NORSOK standard

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in NORSOK S-002 clause 4.9. Otherwise, he shall state the need for such analyses to his customer. Risk evaluation shall be carried out as outlined in Figure 2, to determine if risk reduction is required or whether safety has been achieved. ‘High’ residual risks are not acceptable. Within the ‘Medium’ risk range, safety measures shall be implemented to lower the risk as far as reasonably practicable (the ALARP principle). Safety measures shall be identified by considering the strategy for selection of safety measures according to NS-EN 292; cf. Annex A3. Changes in layout, selection of safe sub-assemblies and components, and safeguarding shall be considered as applicable, and the result of such evaluations shall be followed-up in design and procurement. The operational precautions necessary to reach an acceptable residual risk shall be identified. These may include adherence to certain job procedures, use of personal protective equipment, permit to work system, etc. If additional hazards are created when new safety measures are applied, they shall be added to the list of hazards, and the risk shall be estimated and evaluated. Design safety measures and safeguarding, operational precautions assumed to be implemented by the user, and the residual risk shall be documented in the risk assessment form; cf. Annex E (columns 7, 8, and 9, 10, 11, respectively).

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Risk assessment steps 1-3

new hazards? Safety measures

Identify hazards for each manual task (step 4)

Risk estimation for each task defined

Risk acceptable ?

Yes

Yes

No Risk reduction by design change possible?

Document

No Yes

Yes

in

Risk reduction by safeguarding possible?

Risk Assessment

No Risk reduction by user precautions possible ?

Form (cf. Annex E)

No

No Residual risk acceptable ?

Yes

Input to User instructions and aggregated Working Environment documentation Figure 2 – Breakdown of Step 5 Risk estimation and evaluation

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ANNEX A

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BASIC CONCEPTS (INFORMATIVE)

A.1 Scope and Objectives This NORSOK standard describes rational methods for necessary working environment (WE) analyses of machinery design (i.e. risk assessments and design reviews) and documentation of conformity with WE requirements applicable to offshore machinery. The described allocation of responsibilities, review and assessment processes, and formats of documentation addresses the basic regulatory requirements, normative standards, and expectations of major Clients in the offshore industry. The standard is applicable to the design of machinery; cf. definition of machinery in clause 3.1 of this standard. It is recommended to apply the standard, by means of a contractual requirement, also to sub-assemblies and technical products (equipment / appliances) having similar hazards as machinery. As use of the methods for sub-assemblies and other technical products not formally defined as machinery is optional, only the term machinery is used in the standard. Suppliers (i.e. manufacturers and/or vendors) of offshore machinery, sub-assemblies and other technical products are the primary users of the methods of the standard. The purpose is to assist the Suppliers in meeting regulatory and contractual requirements for WE analyses and documentation during design, and to ensure quality and consistency of the WE documentation aggregated in the as-built documentation handed over to Client. By proper implementation of the standard and incorporation of the safety measures identified by the risk assessment, the Supplier will meet the offshore industry’s expectations for: • Integration of safety into design of subject machinery; cf. the essential health and safety requirements in Machinery regulations §7 and Annex I, and WE requirements in other relevant regulations, standards and codes. • Description of the methods chosen to remove the hazards of subject machinery; cf. requirements for technical documentation to the Declaration of Conformity in Machinery regulations §9.2 and Annex V. • Documentation of WE analyses, noise and vibration control, and hazardous chemicals for subject machinery; cf. NORSOK S-002.

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A.2 WE Requirements, Analyses and Documentation Machinery delivered for use on offshore installations shall comply with the requirements stipulated in the Machinery regulations; i.e. Norwegian Labour Inspection order no.522, equivalent to EU directive 89/392/EEC (as amended). This implies that the machinery shall be designed and constructed according to the principles of safety integration, in compliance with the essential health and safety requirements (i.e. WE requirements) applicable to subject machinery. Applicable WE requirements shall be identified based on assessment of the hazards associated with the machinery. Functional WE requirements are stipulated in Machinery regulations Annex I. Requirements relevant to the design and delivery of offshore machinery, including functional and specific WE requirements and principles for analysis / verification and documentation of machinery safety, are also set out in other regulations, standards and codes, e.g.: • Working Environment Act chapters II and IV; • Regulations re. Systematic follow-up of the Working Environment in Petroleum Activities (the ‘SAM regulation’, stipulated by Norwegian Petroleum Directorate); • NORSOK standards; e.g. S-002 Working Environment; • Norwegian and European harmonised standards; e.g. NS-EN 292, NS-EN 1050, NS-EN 614-1, type B1 and/or type B2 European standards applicable to subject machinery; • ISO quality standards; e.g. ISO 9001, clause 4.4 and 4.6; • Contractual requirements to subject machinery and documentation deliverables. WE requirements are expected to be managed according to common quality assurance principles. Rational methods for analysis / verification of conformity and integration of safety in the design (i.e. methods to remove hazards) are selected based on a breakdown of the WE requirements into: 1. Functional (goal / target oriented) requirements A risk assessment process is used to analyse / verify the design and specify the safety measures necessary to eliminate or reduce non-acceptable risks; cf. NS-EN 292-1, NS-EN 1050, and clauses 5.2 and 6 of this standard. 2. Specific (prescriptive / measurable) requirements A WE design review process utilising checklists is used to identify non-conformities and the need for corrective measures; cf. ISO 9001, and clause 5.3 and Annex G of this standard. The breakdown of the WE requirement and analysis / verification methods are outlined in Figure A1 below. According to the Machinery regulations, conformity with applicable WE requirements shall be documented. The manufacturer or his EU/EFTA representative, alternatively the vendor or the company responsible for assembling machines, shall work out the statutory documentation prior to placing machinery on the market. • For machinery, a ‘Declaration of Conformity’ shall be issued and CE marking shall be applied. Technical documentation demonstrating compliance with the WE requirements, incl. a description of the methods chosen to remove the hazards of subject machinery (cf. Annex A3), shall be drawn up prior to issue of this declaration; cf. Machinery regulations §9, Annex II.A, and Annex V.

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S-005 Rev. 1, March 1999

For a sub-assembly, a ‘Declaration of Incorporation’ shall be issued, incl. information prohibiting use until a ‘Declaration of Conformity’ has been issued for the assembled machinery; cf. Machinery regulations §8 and Annex II.B.

Also, machinery shall be provided with statutory indicators, incl. ‘Instructions’ with information necessary for safe use, maintenance, etc.; cf. Machinery regulations Annex I, no.1.7.4. Additional WE documentation is required to demonstrate the integration of safety into design of subject machinery and to meet the offshore industry’s expectations for WE documentation; cf. NORSOK S-002, clauses 5.3.1 (machinery), 4.9 (WE analyses), 4.8.2 (noise and vibration control), and 4.9.6 / 5.4.2 (hazardous chemicals). • The statutory technical documentation describing the methods chosen to remove hazards (i.e. the risk assessment and the WE design review processes) shall be provided, to demonstrate the quality of the WE analyses and conformity with functional and specific WE requirements in regulations and normative standards. • Data on noise and vibration control and hazardous chemicals shall be provided, among others to facilitate analyses of the machinery’s impact on the overall WE of the installation / areas and personnel exposures. The Supplier is responsible for providing the aggregated WE documentation.

Essential health & safety requirements applicable to offshore machinery • cf. Machinery regulations Annex I • cf. standards and codes (e.g. harmonised European standards, NORSOK S-002) Functional WE requirements

Specific WE requirements

Design of machinery Specific requirement for safety measures

Risk Assessment of design vs. functional WE requirements

Design Review of design vs. specific WE requirements

Identified nonconformities

Delivery of safe machinery

Figure A1 – Breakdown of WE requirements and analysis methods

NORSOK standard

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S-005 Rev. 1, March 1999

A.3 Methods to remove hazards of machinery The preferred method for removing hazards associated with machinery is an iterative process of risk assessments to examine the hazards, followed, when necessary, by specification of safety measures to eliminate or reduce the risk; cf. NS-EN 292-1 clause 6, NS-EN 1050, and clauses 5.2 and 6 of this standard. To verify conformity with specific WE requirements, a design review is also required; cf. ISO 9001, and clause 5.3 and Annex G of this standard. A hazard is a source of possible injury or damage to health. Hazards may affect worker health through both occupational accidents and lasting exposures, resulting in occupational injury and/or work related disease. A hazard is associated with a danger zone, the zone within and/or around machinery in which a person encounters risk of injury or damage to health. A hazardous situation with potential for harm arises when a person enters the danger zone and is exposed to the hazard. Figure A2 illustrates the need for safety measures to protect persons from hazards in a danger zone. Examples of machinery hazards and hazardous situations are listed in Annex D; cf. NS-EN 292-1 clause 4 and NS-EN 1050 Annex A.

Hazard Safety measures Person

Figure A2 - Hazardous situation and need of safety measures

Risk is a function of the severity of the possible injury or damage to health and the probability of occurrence of that harm, as determined by the frequency and duration of exposure, the probability of occurrence of the hazardous situation, and the possibility to avoid or limit the harm; cf. NS-EN 1050. Risk assessments includes risk analysis (i.e. determination of the limits of the machinery, hazard identification, and risk estimation of hazardous situations) and risk evaluation to determine if risk reduction is required or whether safety has been achieved. Risk assessments to specify appropriate safety measures are applicable to hazards resulting in both occupational injuries as well as work related diseases. The strategy and priorities for selecting safety measures are stipulated in NS-EN 292-1 clause 5 and further specified in NS-EN 292-2: 1. Risk reduction by design, i.e. removal of the hazard or limitation of the risk; cf. NS-EN 292-2 clause 3. 2. Safeguarding against hazards by design, i.e. establishment of barriers between the hazard and the person, thereby preventing the person to get in contact with the danger zone; cf. NS-EN 292-2 clause 4. 3. Informing and warning users about residual risks, e.g. information concerning safe work methods, personal protective equipment, work permits; cf. NS-EN 292-2 clause 5. 4. Additional precautions shall also be considered, including emergency stops, escape possibilities, isolation, safe access, etc; cf. NS-EN 292-2 clause 6. According to the statutory principles of safety integration, lower priority safety measures shall not be selected before all possible measures of higher priority have been evaluated and, if feasible, have been implemented.

NORSOK standard

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S-005 Rev. 1, March 1999

ANNEX B NOISE AND VIBRATION MEASUREMENTS (INFORMATIVE) B.1 Noise Verification Measurements Verification measurements according to a documented test procedure shall be carried out during fabrication; cf. NORSOK S-002 clause 4.8.2. For measurements of free field sound pressure levels at specified positions, the standards in the NS-EN ISO 11200 series should be used. Alternatively, specific product standards based on these main standards may be used. When the machine is installed in a room, the noise level will be higher than in a free field. The standards stipulates corrections for the reflected noise caused by the room, so that free field values can be calculated. NS-EN ISO 11201 with engineering grade of accuracy is recommended. Concerning measurements of sound pressure level at operators position, e.g. inside a crane cabin, standardised methods are preferred. However, specific written procedures may be used. For sound power measurements, standards in the NS-EN ISO 3740 series or NS-EN ISO 9614 series should be used. Alternatively, specific product standards based on these main standards may be used. Standards with engineering grade of accuracy, NS-EN ISO 3744 or NS-EN ISO 9614-2, are recommended. The condition for verification of the guaranteed noise level (Lg) is: Lg ≤ L + K where L is the measured value in dB(A) and K is the measurement uncertainty; cf. NS-EN ISO 4871. The sum of L + K shall be presented in the noise data sheet. The uncertainty value K depends on the grade of accuracy for the measurement method. The K-value is to be specified from the supplier, and is his responsibility. However, the following values may be used as typical values : Measurement method accuracy • Engineering grade • Survey grade

NORSOK standard

Correction K (dB) 1-2 3-4

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S-005 Rev. 1, March 1999

B.2 Structureborne Noise Vibration from the machinery supports will allways be transmitted to adjacent areas and radiate noise, i.e. structureborne noise. In work areas, structureborne noise may usually be neglected compared to air transmitted noise. There are exceptions, however, and especially in living quarters and control rooms the structure borne noise level should be evaluated. The input data for analysis of structureborne noise from machinery shall be given as vibration level at the supports. For vibration isolated machinery the vibration shall be measured on the top of the vibration isolators. The vibration level in these posititions are for medium and high frequencies independent of the stiffness of the deck, and is easy to control by measurements. The mean value of the vibration level of all the supports points shall be given in octave bands from 31.5 to 2000 Hz. Data should be given as velocity level dB relative to 5×10-8 m/s. For a machine that is fastened directly to the deck, the vibration level at the support points will depend on the stiffness and other details of the deck and support points. Vibration shall be measured at the carrying frames as near as possible to the machine support points. The mean value of vibration on the supports shall be given, as specified above. These data are only valuable if the details of the deck, frames and supports, in which the measurements are taken, are described in detail.

NORSOK standard

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ANNEX C

S-005 Rev. 1, March 1999

DETERMINATION OF WORKING ENVIRONMENT (WE) DOCUMENTATION RESPONSIBILITIES (INFORMATIVE)

Typical form for documenting the determinations regarding responsibilities and requirements for aggregated WE documentation. Additional WE documentation may be specified in contract / PO. Included are examples for a complex machinery assembly (A) and a safetycritical, but non-noisy sub-assembly (B). Delivery

Machinery A (example)

Sub-assembly B (example)

Required WE documentation ! Declaration of Conformity ! Declaration of Incorporation ! Instructions for safe use, etc. ! Risk Assessment Report ! WE Design Review Checklist ! Chemical Inventory ! Safety Data Sheets ! Noise Data Sheets ! Vibration Data ! …. " Declaration of Conformity ! Declaration of Incorporation " Instructions for safe use, etc. " Risk Assessment Report " WE Design Review Checklist " Chemical Inventory " Safety Data Sheets " Noise Data Sheets " Vibration Data " FMEA Report ! Declaration of Conformity " Declaration of Incorporation " Instructions for safe use, etc. " Risk Assessment Report " WE Design Review Checklist " Chemical Inventory " Safety Data Sheets ! Noise Data Sheets ! Vibration Data ! ….

NORSOK standard

Responsible party

Due date

Status

Supplier A

Sub-supplier B

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ANNEX D

S-005 Rev. 1, March 1999

HAZARDS AND HAZARDOUS SITUATIONS (INFORMATIVE)

Typical hazards and hazardous situations / events associated with machinery that should be considered for risk assessments. The checklist is based largely on the descriptions of hazards in NS-EN 292-1 clause 4 (numbers of corresponding clauses in brackets), and also on NS-EN 1050 Annex A1.

1

The examples of hazards etc. in NS-EN 1050 Annex A also includes cross-references to the essential health and safety requirements in Machinery regulations in Machinery regulations Annex I (i.e. NS-EN 292-2/A1 Annex A), and to clauses in NS-EN 292-1 and NS-EN 292-2.

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S-005 Rev. 1, March 1999

Mechanical [4.2] ! crushing ! shearing / cutting / stabbing / puncture ! entanglement / drawing-in / trapping ! impacts ! friction / abrasion ! high pressure fluid ejection ! falling / ejected objects ! slipping / tripping / falling persons ! loss of stability / overturning Electrical [4.3] ! live parts (direct / indirect contact) ! electrostatic discharge Thermal [4.4] ! hot surfaces (contact) ! flames / explosions (contact) ! heat sources (radiation) ! cold stress (outdoor work) Noise [4.5] ! excessive noise (dangerous to hearing) Vibration [4.6] ! excessive whole-body vibration ! excessive hand-arm vibration Radiation [4.7] ! low frequency electromagnetic fields ! radio frequencies / micro-waves ! infra-red / visible / ultra-violet light ! lasers ! ionizing X-rays, γ-rays, ion beams, etc. Materials and substances [4.8] ! dangerous fluids / aerosols (contact) ! dangerous gases / vapours / mist / fume / dust (inhalation) ! fire / explosion hazards ! biological hazards Ergonomics* [4.9] ! monotonous / excessive muscular load ! work in fixed / static postures ! work in kneeling / squatting / lying positions ! work with hand above shoulder / below knees ! continuous asymmetric load on body * Hazards from neglecting ergonomic principles in design NORSOK standard

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S-005 Rev. 1, March 1999

Hazardous situations / events ! break-up during operation [4.2] ! intervention in combined machinery [4.2] ! noise interfering with communication [4.5] ! inadequate design / location / identification of manual controls and displays [4.9] ! mental overload / underload / stress [4.9] ! malfunction from human errors [4.9] ! failure of power supply ! failure of control systems / circuit

NORSOK standard

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ANNEX E

FORM FOR DOCUMENTATION OF RISK ASSESSMENTS (INFORMATIVE)

Project: PO no.: PO name: Machinery: NO.

S-005 Rev. 1, March 1999

DANGEROUS MANUAL TASKS / INTERACTIONS

Doc. No.: Date: Performed by: Approved: HAZARDS / HAZARDOUS SITUATIONS AND EVENTS

RISK*

C 1

2

3

4

5

F

SAFETY MEASURES / SAFEGUARDING IN DESIGN

R

Rev.:

OPERATIONAL PRECAUTIONS BY USER

RESIDUAL RISK*

C

F

STATUS

R

Operation …. …. Cleaning …. …. Inspection …. …. Maintenance …. …. Other operational modes ….

NORSOK standard

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* Risk estimation according to clause 6.7:

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S-005 Rev. 1, March 1999

C = Consequence (1-4) / F = Frequency (1-4) / R = Risk (H=high, M=medium, L=low)

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ANNEX F

S-005 Rev. 1, March 1999

FORM FOR CHEMICAL INVENTORY (INFORMATIVE)

Project: PO no.: PO name: Machinery: Product name

NORSOK standard

Doc. No.: Date: Performed by: Approved: Intended use

Location (tag no.) Quantity

Rev.:

Safety Data Sheet (Doc. ID No.)

Potential for hazardous exposures; cf. risk assessment

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ANNEX G

S-005 Rev. 1, March 1999

WORKING ENVIRONMENT (WE) DESIGN REVIEW CHECKLIST (INFORMATIVE)

Checklist for performing design reviews of offshore machinery, to verify conformity with specific WE design requirements and to identify any needs for corrective actions. User guide / legend to the checklist columns: 1.

REQUIREMENT A short description of the requirement, with actual dimensions where applicable.

3.

REFERENCES Reference to the standard or code where the requirement is stipulated. NORSOK C-002

Architectural components and equipment

NS-EN 292

NORSOK S-DP-001

Design principles – Technical safety

NS-EN 349

NORSOK S-002

Working Environment

NS-EN 626

NORSOK S-DP-003

Design principles – Environmental care

prEN 12437

Safety of machinery – Basic concepts, general principles for design (Parts 1 - 2) Safety of machinery – Minimum gaps to avoid crushing of parts of the human body Safety of machinery – Reduction of risks to health from hazardous substances (Part 1) Safety of machinery – Permanent means of access to machinery and industrial plants (Parts 1 - 4)

4. STATUS Indication of machinery status and result of review. OK : Fully in compliance with the referred standard or code. AR : Action required. NCP : Non-conformity, action pending. NCA : Non-conformity, action approved. NA : Requirement not applicable for the specific delivery. 4.

COMMENTS All actions necessary to meet requirements stipulated in regulations, standards and codes should be noted. Status indications AR, NCP and NCA shall be followed by a comment.

NORSOK standard

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S-005 Rev. 1, March 1999

WORKING ENVIRONMENT DESIGN REVIEW CHECKLIST

PROJECT : PACKAGE : MODULE / AREA : REV. : DATE : SIGN. : GENERAL COMMENTS :

NORSOK standard

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REQUIREMENT

S-005 Rev. 1, March 1999

REFERENCES

STATUS

COMMENTS

1. ACCESS 1.1 Horizontal/vertical distances 1.1.1 Are horizontal workspaces for fixed equipment minimum 700 mm?

NORSOK S-002, Annex B

1.1.2 Are centre heights of control devices for standing operations (including valve handles) max. 1800 mm above base ? Are the centre heights of control devices for controls in daily use and for controls where access in an emergency is required 900-1500 mm above base?


1.1.3 Are visual displays located 1100-2000 mm above floor level?


1.1.4 Are electrical contacts and switches located 900-1500 mm above floor level?


1.1.5 Are access ways to permanently and intermittently manned workplaces min. 900 mm wide?


1.1.6 Are vertical clearances in access ways min. 2100 mm?


1.1.7 Are vertical clearances in work areas and stairs min. 2300 mm?

NORSOK S-002, Annex B NORSOK C-002, 5.7 NORSOK S-002, Annex B

1.1.8 Is space between fixed cabinets and floor min. 250 mm (or preferably; fixed on floor without space underneath)? 1.2 Pipes and flanges 1.2.1 Are spaces between pipe bottoms and floor min. 150 mm?


1.2.2 Are spaces between external diameter of flanges and fixed obstructions min. 250 mm?


1.3 Guardrails 1.3.1 Are guardrails provided on elevations higher than 800 mm?


1.3.2 Is height from floor to top of the guardrail min. 1000 mm?

NORSOK S-002, Annex B prEN 12437 NORSOK S-002, Annex B prEN 12437

1.3.3 Is free space between handrail, knee rail and toe plate not more than 380 mm? Are minimum two knee rails included?

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S-005 Rev. 1, March 1999

REQUIREMENT

REFERENCES

1.3.4 Are toeboards of min. 100 mm height provided on passageways located over frequented areas and open sea? Is the opening between floor and toe board max. 15mm?

NORSOK S-002, Annex B prEN 12437

1.3.5 Is diameter of handrails within the range 25–50mm?

NORSOK S-002, Annex B prEN 12437 NORSOK S-002, 5.1.2 NORSOK C-002, 5.8

1.3.6 Are stairways, stepladders and inclined ladders provided with continuous railing on both sides, from the top to the lower level and safely terminated at both ends? 1.3.7 Is distance between handrails and any obstruction min. 75 mm?

STATUS

COMMENTS

NORSOK C-002, 5.8

1.4 Stairs 1.4.1 Are stairs or ladders provided where there is a change of elevation exceeding 350 mm and access is required?


1.4.2 Are stairs provided where daily access is required?

NORSOK S-002, 5.1.2 prEN 12437 NORSOK C-002, 5.2

1.4.3 Is width of stairway passage min. 1000 mm, as measured between the inside of handrails (or min. 1200 mm for access to more than two levels)? 1.4.4 Is the inclination of stairways within the range 21° - 45° ? (Recommended range 30° - 38°)


1.4.5 Are the following requirements for steps met:

prEN 12437

a) Height riser (h) ≤ 250 mm b) Going (g) ≥ 100 mm c) 600 mm ≤ g+2h ≤ 660 mm 1.5 Ladders and Stepladders 1.5.1 Is the inclination of: - fixed ladders within the range 76° - 90° ?


- fixed stepladders within the range 46° - 75° ? 1.5.2 Is the width between upright bearers at least 400 mm?

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S-005 Rev. 1, March 1999

REQUIREMENT

REFERENCES

1.5.3 Is there a horizontal clearance of 650 mm in front of ladders, and a horizontal clearance of 200 mm behind the front of the rungs (150 mm for discontinuous obstacles)?


1.5.4 Are rungs evenly spaced, with vertical spacing min. 250 mm and max 300 mm. Are rungs provided with a non-slip surface?


1.5.5 Are safety cages, starting at height 2200 - 3000 mm, provided for ladders higher than 3000 mm?

NORSOK S-002, Annex B prEN 12437 NORSOK S-002, Annex B prEN 12437

1.5.6 Is there a rest landing arranged at each 6000 mm for ladders above 10,000 mm?

STATUS

COMMENTS

1.6 Gates 1.6.1 Are self-closing gates arranged at the top of ladders?

NORSOK S-002, 5.1.2 prEN 12437

1.7 Hatches and manways 1.7.1 Do hatches provided have an access opening of min. 800x800 mm (min. 600x600 mm for access to cofferdams and tanks from floor/platform)?


1.7.2 Are access openings in vertical partitions into cofferdams, tanks etc. equipped with hand grips on both sides above the opening ?

NORSOK S-002, 5.1.2

1.7.3 Are inspection hatches side hinged ?

NORSOK S-002, 5.2.1.2

1.7.4 Are openings in deck larger than 100x100 mm secured by guard-rail or similar?


1.8 Doors 1.8.1 Do doors have a clear opening of at least 750 mm width and 2050 mm height?

NORSOK C-002, 6.1

2. MATERIAL HANDLING 2.1 Is enough space provided for use of lifting and transport gear where lifting or transport of single items of more than 25 kg is required?

NORSOK S-002, 5.2.1.1

3. ERGONOMICS 3.1 Is the height of table top for seated work within the range 680-750 mm, and easily adjustable from work position?

NORSOK standard


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S-005 Rev. 1, March 1999

REQUIREMENT

REFERENCES

3.2 Is the height of table top for standing work within the range 800-1050 mm, and easily adjustable from work position?


3.3 Is operation of handles and push buttons with gloves possible?

NS-EN 292-2

STATUS

COMMENTS

4. ILLUMINATION 4.1 Is lighting according to applicable illumination requirements provided inside enclosed packages and on packages with more than two levels?

NORSOK S-002, Annex A

5. NOISE AND VIBRATION 5.1 Are project specific noise requirements for subject machinery met?

5.2 Are project specific vibration requirements for subject machinery met?

Project’s Noise data sheet based on NORSOK S-002, 5.5 and Annex A Project’s requirements based on NORSOK S-002, 5.5, Annex A and Annex E

6. SAFETY PRECAUTIONS 6.1 Are anti-skid surfaces provided in access ways and work areas? 6.2 Is protection against personnel contact with hot surfaces above 70˚C and cold surfaces below -10˚C provided? 6.3 Are dead end corridors and platforms exceeding 5 m length provided with min. 2 exits? 6.4 Are safe distances between possible moving objects exceeding the following minimum gaps to avoid crushing of the body parts at risk: • • • • • • • •

Body Head Leg Foot Toe Arm Hand Finger

NS-EN 292-1, 4.2 NORSOK S-002, 5.1.2 NORSOK S-002, 5.3.2 NS-EN 292-1, 4.4 NORSOK S-DP-001, 7.2 NS-EN 349

> 500 mm > 300 mm > 180 mm > 120 mm > 50 mm > 120 mm > 100 mm > 25 mm

NORSOK standard

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REQUIREMENT

S-005 Rev. 1, March 1999 REFERENCES

STATUS

COMMENTS

7. HAZARDOUS SUBSTANCES 7.1 Are Safety Data Sheets, approved according to the Norwegian Oil Industry Association, provided for all chemicals delivered or instructed to be used with the machinery?

NORSOK S-002, 5.4.2 NS-EN 626-1

7.2 Are none of the prohibited substances included in the machinery’s chemical inventory?

NORSOK S-002, 5.4.2 and Annex D.1

7.3 Are drip trays provided under all sampling / filling points and other places where spillage might occur?

NORSOK S-002, 5.4.1 NORSOK S-DP-003 NORSOK S-002, 5.4.3 NS-EN 626-1

7.4 Are emissions from machinery controlled and in compliance with NORSOK requirements regarding threshold limit values?

NORSOK standard

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S-005

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