Professional Training and Consultation API 570 Preparatory Preparatory 19 -24 Feb 2005, Dammam
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DAILY POINTS TO RECALL (DAY 6) 1.
&.
GENERAL:
a.
ASME Sec. V is NDT procedure/methods code and is applicable ble only if it is referenced by the relevant ant cons co nstr truc ucti tion on co code de.. The The exte extent nt of NDT NDT and and ac acce cept ptan ance ce standards is iven in relevant construction code.
b.
NDT NDT e!u e!uip ipme ment nt and and the their ir cal calib ibra rati tion on sha shall ll be be as as per per ASME ASME Sec. V.
c.
Exam Examin iner er is NDT NDT per perso son n in in emp emplo loym ymen entt of of fab fabri rica cato torr or or repair orani"ation. #nspector means Authori"ed #nspector $ho finally finally accepts/re%ects NDT results.
FOR RT:
a.
Satis Satisfa facto ctory ry radi radio ora raph ph shall shall mee meett re!ui re!uire reme ment nts s of densi density ty and and #'# imae (&T hole for hole type and desinated $ire for $ire type).
b.
*ac+scatter, -iht imae of * on dar+ bac+round nacceptable
c.
Density -imitations, Min 0.1 for 2 3ay / &.4 for 53ay Max 6.4 for 2 / 5 3ay Density Variation 7 08 9 to : ;49
d.
Doub Double le $all $all vie$in vie$in (D< (D
e.
>enetr >ene trame amete terr Sele Select ctio ion, n, Table Table T&? T&?@. @. Thic Thic+n +nes ess s inclu include des s $eld $eld reinforcement. *ut not bac+in.
f.
>enetr >ene trame amete terr shal shalll be no norm rmal ally ly pla place ced d on on sou sourc rce e side side.. #f #f not not possible it may be placed on film side $ith lead letter BC=.
Professional Training and Consultation API 570 Preparatory 19 -24 Feb 2005, Dammam
Page 3 of 5
DAILY POINTS TO RECALL (DAY 6)
8.
b.
Fo+e Techni!ue, se D.. or A.. or permanent manet Suitable for surface defects only.
c.
alibration, E!uipment Ammeter to be calibrated once a year comparin $ith standard Ammeter ta+e ; readins. Deviation shall not exceed G049 of full scale.
d.
-iftin >o$er of Fo+es A shall have liftin po$er of at least 6.8 + (04 lb.) D shall have liftin po$er of at least 01.0 + (64 lb.)
e.
Minimum t$o examinations on each area the second is perpendicular to first
FOR VT:
a. b. c.
d. e.
@.
There shall be a $ritten procedure for VT indicatin the essential and nonessential variables. The procedure used to be re!ualified if the essential variable is chaned. The acceptance of procedure is the criteria to detect a defect of $idth not more than 0/;&= (4.1 mm) made on similar surface. The examiner shall be annually tested for Haeer H0. Cor direct Visual testin the eye of examiner shall be at an anle of min.;4 de. to the surface and $ithin &6 inches from surface
FOR LEAK TESTING (BUBBLE TEST):
a. b. c.
The testin medium maybe air or any other inert as. The test temperature shall be bet$een 6I to 8&I . The pressure aue rane shall be t$ice the test pressure preferably ho$ever the aue rane shall not be lo$er than 0.8 times and hiher than 6 times the test
Professional Training and Consultation API 570 Preparatory 19 -24 Feb 2005, Dammam
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DAILY POINTS TO RECALL (DAY 6)
d. e. f. ?.
pressure. >ressure aues shall be calibrated at least annually >rior to inspection the test pressure shall be held min. 08 minutes. The presence and ro$th of bubble at lea+ location $ould constitute a defect. After repair the lea+ test shall be repeated.
SE-797 UT MEASUREMENT:
a.
>ulseecho method can be adopted up to &44JC
b.
Apparatus, ; types 3T read out 3T : direct read out Direct thic+ness read out
c.
d.
Search nits, ; types Straiht beam contact type Delay line type (delay bloc+ to minimi"e dead "one) Dual element type. There are t$o crystals set at a small rane. -o$ roof anle used for hiher rane and hiher anle for lo$ rane. ih thic+ness measurement, se of multiple echoes is made. (i.e. for thic+ness bet$een 84 mm and @4mm use 04mm calibration bloc+ then 8th bac+ echo $ill be 84 mm and @th $ill be @4mm. Set the 8th echo to "ero and @ th at the screen rane. The screen is calibrated to 84@4mm.
e.
.
3T read out is recommended on corroded and rouh surface.
Professional Training and Consultation API 570 Preparatory 19 -24 Feb 2005, Dammam
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DAILY POINTS TO RECALL (DAY 6) API RP 578
1.
A># 3> 8?1 can be used for ne$ and existin pipin system. arbon steel components are not covered in 3> 8?1.
K.
Lne inspection lot means items ta+en from one heat only.
04.
Mill test report is not substitute to >M# test.
00.
>M# testin of at least one electrode should be carried out from each lot or pac+ae.
0&.
>M# Test Methods, X-ray Fluorescent: #t cannot detect elements lihter than a. sulpher. arbon cannot be detected. The e!uipment uses amma rays to analy"e material. Optical Emission Spectrometer: ses electric arc to analy"e b. liht spectrum. May be used to detect carbon. Chemical analysis by removin small sample. c.
0;.
M# testin is conducted on ne$ or existin pipin records of results shall be +ept as lon as the pipin exists in oriinal location.
