1、 ENGINEERING STANDARDS Test Procedure SUPERCEDED EDS-T-7672 Test Method for Resistance of Cellular Material to Heat Ageing This standard may be applied only for current projects. It is Superceded for all future projects and replaced by GMW14358. $)2e 8:8 !7(2e 4G - Note: 8 E:48t G8 =97 FF7 957%L+ ,
2、FG P-P Program .Bd# GMW14358 ) $4=F7 957F$ . Copyright 2011 General Motors Company All Rights Reserved September 2011 Originating Department: GM Korea Engineering Standards Page 1 of 4 Version : 4 1 Scope Note: Nothing in this standard supersedes applicable laws and regulations. Note: In the event o
3、f conflict between the Korean and English language, the Korean language shall take precedence. 1.1 Purpose. The purpose of this standard is to determine the resistance of cellular material to heat ageing and observed by measuring the physical properties prior to and after heat ageing. 1.2 Applicabil
4、ity. Cellular material. 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-7507 2.3 Additional References. None 3 Resources 3.1 Equipment. 3.1.1 Air-circulating oven maint
5、aining the specified temperature within 1K. (For rubber based materials, the rate of air changes in the oven shall be 3 to 10 changes per hour). 3.1.2 Suitable test equipment for the performance of the specific physical property tests (tensile strength, compression set etc.). 3.2 Test Piece. 3.2.1 S
6、ize of Test Pieces. Test pieces shall comply with the appropriate requirements for the test method to which physical property tests(i.e. tensile strength, compression set etc.) are to be conducted. 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 .
7、 4G -8t $)2e 8:8 !7(2e8x 9IFd 88F 17%L+ , !7(2e 4G 98 , G8 ,p*95 2e:8x ?U9IF7 DD$F$ . 1.2 957 -88 . $)2e 8: . 2 4) E:4 / :0 : C-H +d%P 9I8 6# F 48 07 38%P E:48x 957F$ . 2.1 17 E:4 / . None 2.2 GM E:4 / . EDS-T-7507 2.3 dA E:4 / . None 3 4G 88 3.1 4G 8/x . 3.1.1 C9I 7$72P 1K 8 7X=-88* 8T:F# )d3PG4
8、7X/D . (,h 8:8 77 7X/D!8 )d* 48$- 3 10G G4A 3L 866 F ) 3.1.2 C9I ,p2e4G (88I$ , 62 &% )8x Fd7 95$-F 4G 8/x . 3.2 4G D . 3.2.1 4G D8 A d . 88I$ , 62 &%8 ,p2e 4G 8x 3LFFd7 959.F 4G D8x :4/xF7 !7(2e 4G 987 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 4 SEP 2011 Apply new Engineering Standard Template. Superceded (Polymer / Organic Material Lab Team) / 4 d3TE:4 64 957 . F9I957 =* (G)8*4G D4 )
