1、 ENGINEERING STANDARDS Test Procedure LIMITED USE EDS-T-7620 Test Method for the Resistance to Synthetic Perspiration Solution of Automotive Components Do Not Use on New Program; No Replacement. 8% =7 .E8 89 &t767 $4F !2e 4G - Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program 72P# 957%L: 6#$ . Copyri
2、ght 2011 General Motors Company All Rights Reserved September 2011 Originating Department: GM Korea Engineering Standards Page 1 of 3 Version : 4 1 Scope Note: Nothing in this standard supersedes applicable laws and regulations. Note: In the event of conflict between the Korean and English language,
3、 the Korean language shall take precedence. 1.1 Purpose. The purpose of this standard is to determine the effects of a synthetic perspiration solution on surfaces with which it has been in contact. 1.2 Applicability. This standard shall be used to determine the resistance to synthetic perspiration s
4、olution of automotive trim components. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specifications. EDS-T-7013 2.3 Additional References. None 3 Resources 3.1 Equipment and Reagent. 3.1.1
5、 Filter Paper (e.g. WHATMAN 541 and Equivalent) or Suitable Absorbent Cloth. 3.1.2 Sealing Compound which shall not adversely affect the test material. 3.1.3 Synthetic Perspiration Solution (EDS-T-7013). NaCl 4.5g, KCl 0.3g, Na2SO4 0.3g, NH4Cl 0.4g, CH3CH(OH)COOH-90% 3.0g, and H2NCONH2 0.2g etc shal
6、l be mixed and resolved into the distilled water or the ionized water 1000 cm3 to make this solution. 3.1.4 Humidity Chamber. 1 P7 :0 : ., E:48 6&F !7$ :4-8! 9I8x $4=F 3L 6$ . :0 : F67t 7568 18 88x 7 , F6* 72T8p) F$ . 1.1 +95 . ., E:48t 8% = .E8 E+7 89&t 768x 9E=4P 767 8F E+-G 9I$* D4F8x +958p) F$ .
7、 1.2 957 -88 . ., E:48t 8% = .E8 89&t 767 $4F !2e 4G -7 $4F 957F$ . 2 4) E:4 / :0 : C-H +d%P 9I8 6# F 48 07 38%P E:48x 957F$ . 2.1 17 E:4 / . None 2.2 GM E:4 / . EDS-T-7013 2.3 dA E:4 / . None 3 4G 88 3.1 4G 8/x -C 46 . 3.1.1 7 0: (7.H 952:$) 89&t 768x =x7$ . 4.3.4 40 E , 93% 1$43$8 972P 2448 % 6| “
8、6x %$ . 4.3.5 % 8x 9PF 7 0:! H3L7 =8p) 4G D E+8 768x $6x! $8 D4F$ . 5 Data 5.1 Evaluation. The tested area of the test piece shall be examined with the naked eye and compared with untested portion of the component. There shall be no visible change to the surface. 5 4G $8Bd 5.1 D4 . 8U6|8p) 4G 98 /G
9、4G D8x /x D4F7 E+7 -G4 666 F$ . GM KOREA ENGINEERING STANDARDS EDS-T-7620 Copyright 2011 General Motors Company All Rights Reserved September 2011 Page 3 of 3 Version : 4 6 Safety This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all
10、the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbreviations, and Symbo
11、ls. Not applicable. 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: 6 6|987 $4F 7 9 ., E:48t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t 87 $4F 170 4)%P +& 6|98 ,l9P8 F8x 9P4F:# 6#$ . &d(2P 17 987 95FF 6|980 I 1B* 9DF , -18 9PF 728 957 7 .* 9IF# 8t
12、 ., E:4 1788 =y8 1F8$ . 7 768 9I8 7.1 98,l 76 . F$-1F 68 . 7.2 66 -C dGl . F$-1F 68 . 8 Ed - $* ,l2P! $+ &%72P ., E:48 87%T &# $80 M8 EdF$ . English Resistance t*o Synthetic Perspiration Solution to EDS-T-7620 - No change of surface. Requirements Test Method Designation ,l 89&t768 !2e 4G - EDS-T-762
13、0 - E+ -G 68x 7 9 4G - 4G F+ 9 Release and Revisions This standard was originated in September 1990. It was first approved by Engineering Standard Committee in September 1990. It was first published in September 1990. 9 9P9I -C P9I 8)Y ., E:48t 1990 “x 9 87 E:4 -Gl4 .7 %L6 , d3TE:41,h7 8F 1990“x 987
14、 38%L6$ . ., E:48t 1990“x 987 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 4 SEP 2011 Apply new Engineering Standard Template. Limited use with no replacement (Polymer / Organic Material Lab Team) / 4 d3TE:4 64 957 . F9I957 ($4=E:4 68 ) =* (G)8*4G D4 )
