2024年3月10日发(作者:东风本田思域2022款)
normazione
MASSDETERMINATION
Fabrics,waterprooffabrics,leather,
imitationleathersandvinylsheets
MATERIAL
STANDARD
50440
1/2
Page:
Date:
05/18/2005
MANAGERDepartment:E.D.--IngegneriadeiMateriali
PURPOSE
Tospecifythetestprocedureforthedeterminationofthemass(weight)offabrics,waterproof
fabrics,tationleatherandvinylsheets.
ThisStandardconsistsof
2pages.
ChangeDate
Description
------
A
May,1991
05/18/05
Edition3---Revisedandre---edited.
§2changed.(FD)
(OR)
ANYPRINTEDCOPYISTOBEDEEMEDASUNCHECKED;THEREFORETHEUPDATEDCOPYMUSTBECHECKEDINTHEAPPROPRIATEWEBSITE
PUBLISHEDBYSATIZS.p.A.---NORMAZIONE
C
O
N
F
I
D
E
N
T
I
A
L
T
H
I
S
D
O
C
U
M
E
N
T
M
U
S
T
N
O
T
B
E
R
E
P
R
O
D
U
C
E
D
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R
C
I
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A
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D
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P
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.
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3
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.
A
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SUPERVISORDepartment:E.D.--IngegneriadeiMateriali
-
-
-
50440
1
PURPOSE
Page
2
Change
Todeterminethemassweightoffabrics,waterprooffabrics,leathers,imitationleathersandvinyl
sheets.
2
TESTMETHOD
Themass,expresseding/m
2
,isdeterminedat20±2?Croomtemperaturebyusingananalytical
balancewithaccuracyof0.1g,and3squareorroundtestspecimens(areaofeach:100±0.5
cm
2
)cutfromtheimitationleatherorvinylsheetorfabricundertest,asperarrangementshown
infigureandconditionedatthesametesttemperaturefor72hours.
5
c
m
2
2.1
C
O
N
F
I
D
E
N
T
I
A
L
T
H
I
S
D
O
C
U
M
E
N
T
M
U
S
T
N
O
T
B
E
R
E
P
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D
U
C
E
D
O
R
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L
A
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D
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P
A
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S
W
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U
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P
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I
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W
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O
S
.
P
.
A
.
Asregardsthewaterprooffabrics,andKspecifiedintherelevantprocurementSpecification,the
lossofmassistobedeterminedaftera2---himmersionofatestspecimeninwateratroomtem-
peratureandsubsequentdryinginstillairatroomtemperature.
3
EXPRESSIONOFRESULTS
Themassisdeterminedasfollows:
P=
P=Massing/m
2
.
P
1
?100
3
where:
P1=Sumofthemassesofthethreespecimens.
Thelossofmassisexpressedasapercentageoftheoriginalmass.
PUBLISHEDBYSATIZS.p.A.---NORMAZIONE
5
c
m
2
100±0.5cm
2
R
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