1、 ENGINEERING STANDARDS Test Procedure LIMITED USE EDS-T-7605 Test Method for Determining the Low Temperature Resistance of Automotive Trim Materials Do Not Use on New Program; No Replacement. 8% = C*8:8 94794F2e 4G - Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program 72P# 957%L: 6#$ . Copyright 2011 G
2、eneral Motors Company All Rights Reserved September 2011 Originating Department: GM Korea Engineering Standards Page 1 of 5 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, the Korea
3、n language shall take precedence. 1.1 Purpose. The purpose of this standard is to determine the low temperature resistance of automotive interior trim materials (e.g. plastic films, leather cloths, textiles). 1.2 Applicability. This standard shall be used to determine the surface state of the test m
4、aterial capable of resisting the consistent impact forces at low temperature, after storage at low temperature. 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
5、 Additional References. None 3 Resources 3.1 Equipment. 3.1.1 Chamber capable of conditioning according to EDS-T-7507. 3.1.2 Impact tester (see Figure 1). 3.1.2.1 This shall consist of a flat block to support the test piece and a vertical tube of circular cross section with an internal diameter of (
6、321) mm. 3.1.2.2 A weight shall freely slide in the tube with minimum frictional losses.(The use of low friction plastic bearing materials i.e. nylon, PTFE is recommended) 1 P7 :0 : ., E:48 67 88?F6 F$ . 3.1.2.5 47# ,h 8 “8* 99IF 3L 8$) :DD 88) .Bd 50 200 mm 187 :E4 88 *4 10 mm8 +8 F;+8x &d( )X 866
7、F+ Ft8x !8 9IF 3L 866 F$ . 3.1.2.6 “8# ,h 8 -E+72P :DD :8 3L:* +F$ . 3.1.3 9I%P 7$ (-30) E 3K * 8T:F 3L 8# 947 =- . 3.1.4 4G D :4/x* 88F 488! 9 . ,h 8 ,h ($88# g8+ F77X= -88# 0.05 g)# $+8! 8: &%7 ,l8 G* 17F7 !A!$ . 7* !A!$ . 4.1.4 !F “8 . Ft8x 9PFd -H) :98 :DD 88).Bd ,h -E+:8 3L: “8* +F+ $+8! 8: &%7
8、 ,l8 H* 17F7 !A!$ . 8 “88 $88# mm 8+ F7 7X= -88# 1 mm8$ . 7 :E4 8 4G D8 :E67 ,* *8 Gl7 9EF 3L 8$) +$ . 4.2.4 4G D8x 947 =-72P 248 % 6| -?F G , 7$72P 9I%P “8).Bd 4G D8 *88) ,h* &6(*$ . 8 4G 8?# 947 =-7 2 -?F$ . 4.2.5 4G D8x !6 177 248 -?F G 91F$ . Figure 1: Principle of the Test Assembly / ,* 1: 4G 8
9、?8 8* 5 Data 5.1 Evaluation. The test piece shall be examined at a magnification of minimum 5 for cracking, delamination or other deterioration or requirements of the specification. 5 4G $8Bd 5.1 D4 . 2F -d8 5-d 818 G$48x 17F7 7( , ?i.* , , 7 .*F F Gm8t 8 7 1F7 &d* +& F8x 8U6|7 8F D4F$ . GM KOREA EN
10、GINEERING STANDARDS EDS-T-7605 Copyright 2011 General Motors Company All Rights Reserved September 2011 Page 4 of 5 Version : 4 5.2 Requirement. All the fact evaluated in clause 5.1 shall not bring about on the test piece. 5.3 Expression of Results. The low temperature resistance shall be evaluated
11、to the requirements of the relevant drawing, material specification etc. and expressed with reference to this test method. 6 Safety This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all the safety problems associated with its use. It
12、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 Symbols. Not applicable. 8 Coding System This standar
13、d shall be referenced in other documents, drawings, etc., as follows: 5.2 7 1F . 5.1 9 (4.1.49) 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 )
