UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO FACULTAD QUÍMICA LABORATORIO METROLOGÍA Práctica 1 TRAABILIDAD FISICA
I!t"#ra!t"$% C"&a Garc'a Da(a!a Li)*"t+, E$-.i/"0 P)a2a$ 34ctr, Uri*" V"#a Eri5 6."/"$ 7 2" A*ri0 891:
Gr.;%
TRAZABILIDAD FISICA 0
1. OBJETIVOS a) O*t"!"r 0a 2"!$i2a2 2"0 a#.a a t"<;"rat.ra a<*i"!t", ; at<$=4rica, > 3r? D"=i!i2a$ @a<*i"!ta0"$, a tra/4$ 2" 2$ <4t2$? b) C!$tr.ir 0a carta 2" tra)a*i0i2a2 "! 0a <"2ici! 2" 0a 2"!$i2a2 2"0 a#.a a tra/4$ 2"0 1 "r <4t2 ";"ri<"!ta0? 2. DEFINIR EL MENSURANDO M"2ir 0a 2"!$i2a2 2" a#.a 2"$i!i)a2a a ;r"$i! at<$=4rica ( t"<;"rat.ra a<*i"!t"? M"!$.ra!2 V0.<"! 2" .! ci0i!2r Ma$a 2" a#.a T"<;"rat.ra
M2"0 V =
π 4
Ma#!it.2"$ 2" "!tra2a 2% Diá<"tr +% a0t.ra
2
d h
< @<"2ici! 2ir"cta T @<"2ici! 2ir"cta
<% 0"ct.ra 2" 0a *a0a!)a T% 0"ct.ra 2"0 t"r<<"tr
3. INTRODUCCIÓN. Tra)a*i0i2a2 "$ 0a ;r;i"2a2 2"0 r"$.0ta2 2" .!a <"2ici! 2" .! ;atr! ta0 -." ;."2a r"0aci!ar$" c! r"="r"!cia$ 2"t"r
2 C<;"t"!cia% ca2a 0a*ratri "! 2!2" $" r"a0i)a .! <á$ ;a$$ 2" 0a ca2"!a 2" tra)a*i0i2a2 2"*" ;r/"" "/i2"!cia 2" $. c<;"t"!cia t4c!ica <"2ia!t" $. cr"2i*i0i2a2 r"c!ci2a acr"2ita ( $. =actr 2" c*"rt.ra crr"$;!2i"!t"? E0 c!c";t 2" i!c"rti2.<*r" ;ará<"tr a$cia2 a0 r"$.0ta2 2" .!a <"2ici!, -." caract"ri)a 0a 2i$;"r$i! 2" 0$ /a0r"$ -." ;2r'a! ra)!a*0"<"!t", $"r atri*.i2$ a0 <"$.ra!2?
4. PARTE EXPERIMENTAL 4.1 Mat!"a#$
•
Ba0a!)a a!a0'tica@ca0i*ra2a " i!=r<" 2" ca0i*raci! 2
•
Va$ 2" ;r"ci;ita2$ :9 <0
•
T"r<<"tr @ca0i*ra2
•
V"r!i"r@ca0i*ra2
•
8 ;ar"$ 2" #.a!t"$
4.2 D%a!!&##& '(!"*ta#$
Para r"a0i)ar 0a$ <"2ici!"$ 2" 2"!$i2a2 c0ca<$ a#.a 2"$i!i)a2a "! "0 /a$ 2" ;r"ci;ita2$ 2" :9<0, ( ;"$a<$ @9 /"c"$ "! 0a *a0a!)a a!a0'tica? Ca2a
Para 2"t"r
Nta% t2a$ 0a$ <"2ici!"$ $" r"a0i)a! a t"<;"rat.ra a<*i"!t", c! "0
+., RESULTADOS - DISCUSIÓN$
Tab#a 1
3
Dia< T"<; @KC Ma$a @# + @c< @c< 88?7 ?1J8 ?: ?7H 88?7 ?1J11 ?1: ?7: 88? ?1J9 ?H1 ?7H 88? ?1 ?:J ?7:: 88?7 ?17 ?:: ?7 88?7 ?17H ?:1 ?7:: 88? ?1JH ?:: ?7:: 88?: ?1 ?:1: ?7:: 88?: ?1 ?1: ?7:: Tab#a 2 88? ?1HJ ?J: ?7:: 88?: ?1H1 ?:H ?7 88?81 ?18H ?18 ?:HJ1 ?:8 ?7: ?7: PROMEDIO 88?: 88?: ?18 ?:H ?7: Tab#a 3 88? ?11 ?: ?7:: 88? ?118 ?:1: ?7:: 88? ?1HH ?: ?7:: U A@T88? U U A@+ U A@2 A@< ?1 ?:1 ?7:: 9?911 9?999 9?997 9?9997 88? ?18 ?:H ?7:: UB@T UB@< UB@+ UB@2 8 ?11J ?:7 ?7:: 9?7 9?9991 9?99H 9?99H 88? ?19H ?::: ?7: UC@T UC@< UC@+ UC@2 8 ?1:8 ?:1 ?7:: 9?7999 9?999 9?999 9?99: 8 ?1:77 ?:1 ?7:: 88? ?1:7H ?:: ?7:: 8 ?1:J: ?: ?7:: 1! Mt&/&. 8 ?1:J ?:: ?7:: 8 ?1: ?:: ?7: 8 ?1::H ?:: ?7:: 88? ?1:H ?:: ?7:: 8 ?1:H1 ?::: ?7:: 88? ?1:H ?:1 ?7: V =
√( )
π 4
2
U c (V ) =
2
d h=
π 4
2
3.8533
∗3.7451 = 43.6735
( )
2
δV δV 2 2 U c ( d ) + U c ( h ) = δd δh
4
√( ) πdh 2
cm
3
( ) 2
U c ( d )
2
+
πd 4
U c ( h )
2
U c (V ) =
√(
π ∗3.8533∗3.5471 2
ρ=
√( )
U c ( ρ )=
√(
0.00355288
2
+
(
π ∗3.8533
2
δρ δρ 2 2 U c (m ) + U c (V ) = δm δV
1 43.6735
)
2
2
)
2 2
0.00905281
= 0.50
cm
3
m 66.1624533 g g = =1.5149 3 v mL 43.6735 cm
( )
2
U c ( ρ )=
)
2
2
0.00098319
2
(
+
√( ) 1
V
U c ( m )
− 66.1624533
43.6735
2
)
2
( )
+
−
m
V 2
U c ( V )
2
2
0.503983
2
=0.017
g mL
20 Mt&/&.
−1
−3
2
−5
3
−7
4
ρ= 999.85308 + 6.32693 x 10 T −8.52383 x 10 T + 6.943248 x 10 T −3.821216 x 10 T
ρ=1010.6077
Kg 3
m
5
= 1.01
g cm
3
. CUESTIONARIO
1? C.á0 "$ 0a 2i="r"!cia "!tr" tra)a*i0i2a2, carta 2" tra)a*i0i2a2 <"tr0#ica •
•
•
ca2"!a 2" tra)a*i0i2a2
Tra)a*i0i2a2% "$ 0a ;r;i"2a2 2"0 r"$.0ta2 2" .!a <"2ici! 2"0 /a0r 2" .! ;atr! ;r 0 c.a0 "0 r"$.0ta2 "$tá r"0aci!a2 a r"="r"!cia$ 2"t"r
8? S"a0a a0#.!a$ 2i="r"!cia$ "!tr" tra)a*i0i2a2 ='$ica ( tra)a*i0i2a2 -.'
•
Tra)a*i0i2a2 ='$ica% S" +ac" a ;atr!"$ 2" r"="r"!cia 2"0 Si$t"
6
. CARTA DE TRAZABILIDAD
Ca!ta t!aab"#"/a/ 1
M/""&*% / /"5t!&. 7
CNMPNM8
Patr! Naci!a0 2" 0!#it.2? I!c"rti2.<*r" ± 34.6 µm
B0-."$ Patr! T119 I!c"rti2.<*r" ± 0.06 µm
N? ASBP989
B0-."$ Patr! T9: a0 T9J ± 0.017 m
LMD991H: a0 LMD991HJ Ma"$tr 2" L!#it.2"$ T9:9 R"$0.ci!999<< I!c"rti2.<*r" ± (250 + 0.5 L ) nm L =mm 8
97 91:8
Marca $ca0a A0ca!c"% 919 << I!c"rti2.<*r" ± 34.6 µm
M"2ici! 2"0 2iá<"tr? R"$0.ci! ?7: I!c"rti2.<*r" 9?99979J1 c<
La*? D" M"tr0#'a FQ? UNAM?
Carta 2" tra)a*i0i2a2 8 9
M/""&*% / a#t6!a.
CNMPNM8
Patr! Naci!a0 2" 0!#it.2? I!c"rti2.<*r" ± 34.6 µm
B0-."$ Patr! T119 I!c"rti2.<*r" ± 0.06 µm
N? ASBP989 B0-."$ Patr! T9: a0 T9J I!c"rti2.<*r" ± 0.017 µm
10
LMD991H: a0 LMD991HJ Ma"$tr 2" L!#it.2"$ T9:9 R"$0.ci!999<< I!c"rti2.<*r" ± (250 + 0.5 L ) nm L =mm
97 91:8
Marca $ca0a A0ca!c"% 919 << I!c"rti2.<*r" ± 34.6 µm
M"2ici! 2"0 2iá<"tr? R"$0.ci! ?:HJ1 I!c"rti2.<*r" 9?997:: c<
11
La*? D" M"tr0#'a FQ? UNAM?
Ca!ta t!aab"#"/a/ 3 M/""&*% / t(!at6!a. CNMPNE8@1 CENAM
Patr! Naci!a0 2" T"<;"rat.ra? ± 0.8 µm
CNMCCH89111899 CALIBRACION TLV Marca La.5a I!c"rti2.<*r" ± 0.8 µm
12
Patr! ROSEMOUNT H891 Va0r I!c"rti2.<*r" 9?7 C
T"<; 2"0 A#.a D"$i!i)a2a? Va0r 88?81 I!c"rti2.<*r" 9?911C
13
La* 2" M"tr0#'a FQ? UNAM?
7. CONCLUSION
A0 c<;arar 0a$ 2"!$i2a2"$ ;r 0$ 2$ <4t2$ *t"!"<$ c< r"$.0ta2 -." ;r "0 ;ri<"r <4t2 0a 2"!$i2a2 "$
8. BIBLIO9RAFIA$
•
991?CENAM, C"!tr Naci!a0 2" M"tr0#a? +tt;$%?c"!a8989982ct$t"9JJ?;2=
•
+tt;%?c!+?#*?<2c$"/"!t$c!+;r"$"!taci!8"&"<;02"ca2"!a$2"tra) a*i0i2ac"!a
14
