1、 ENGINEERING STANDARDS Test Procedure LIMITED USE EDS-T-7657 Test Method for Compressibility of Upholstery Trim Strips Do Not Use on New Program; No Replacement. 8% = !88:8 68 4G - Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program 72P# 957%L: 6#$ . Copyright 2011 General Motors Company All Rights Res
2、erved August 2011 Originating Department: GM Korea Engineering Standards Page 1 of 4 Version : 3 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 Korean language shall take precedence. 1.1 P
3、urpose and Applicability. This test method shall be used to determine the compressibility of upholstery trim strips made principally from rubberized hair, rubberized coconut fibers etc. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Stan
4、dards/Specifications. None 2.2 GM Standards/Specifications. EDS-T-7507 2.3 Additional References. None 3 Resources 3.1 Equipment. 3.1.1 Test Apparatus for conditioning to EDS-T-7507. 3.1.2 Compression Testing Machine. Testing machine capable of measuring the compression force by use of a suitable co
5、mpression cage. The face of the lower plane pressure plate of the cage shall be larger than the test piece and the upper plate, which shall be parallel to the lower plate, shall be (120 1) mm square. The test machine shall be capable of maintaining the specified force for the specified period and sh
6、all measure such force to within 1 %. It shall also be equipped with a linear scale accurate to within 0.1 mm. 3.1.3 Cutting Dies or Saws for preparation of the test pieces. 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 -C 957 -88 . ., 4G -8t ,h2
7、e.8 F8T%P G6 (Hair), ,h2e.8 F8T%P “O G8- (Coconut Fibers) &%8 8:) 2e%P 8% = !888 68 (Compressibility)8x 9IFd 88F 17%P$ . 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 EDS-T-75078 98=* 88F 4G d .
8、 3.1.2 6 4G 8/x . 959 4G 7 D7 8F 6)Y ?U9I8 4#F 88 4G d) 68x 4F# -EDD8t 4G D8 A d.($ $ 6 F+ , 8KDD8t F-8 (120r1) mm 8 9I15GI8p) -EDD0 DFF6 F$ . DF 4G :E7 C9I F:E8x r 1 %8 7X= -88 6|72P 8T:F+ 2TGI 3488 9IG$# r 0.1 mm 8!866 F$ . 3.1.3 4G D =x?* 88F 92 200 mm l8) 4G D8x =x?F$ . +6 4G D8 C9I G818x 49l 3L
9、D8 %L: 68x & 4G D -E+8 :$4* 4G D8 GI10 8?4P 4G D8 8K+8 3LD8x 8*$) F$ . C9I 4G +95 , :$48 +60 ?3L , 4G DD -C 4G -F &%8t $+ -C 4G 7 9 17 !A!$ . 3.2.2 Q F:E (Q 4G F:E8x (60r5) 88t $8 47 8F 1F$ . Z = W, D# Z = h0 h1 GM KOREA ENGINEERING STANDARDS EDS-T-7657 Copyright 2011 General Motors Company All Righ
10、ts Reserved August 2011 Page 3 of 4 Version :3 Where, Z = compressibility in mm. W = travel of the test indentor (in mm) between applications of pre load force and total test force. h0 = linear scale reading in mm under pre load force. h1 = linear scale reading in mm under total test force. 5.2 Expr
11、ession of Result. With the reference to this test method, the compressibility of trim strips shall be indicated as the range of values determined (min and max values) or as the individual value, in mm, rounded to the nearest 0.1 mm. 6 Safety This standard may involve hazardous materials, operations,
12、 and equipment. This standard does not propose to address all 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 Gl
13、ossary. Compressibility: Defined as the linear deformation of a standard test piece occurring when a standard force is applied. 7.2 Acronyms, Abbreviations, and Symbols. Not applicable. 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: 7 d2P , Z = 68 (
14、mm). W = Q F:E8x 957F8x & ?8d8 8%) (mm). h0 = Q F:E F72P8 2TGI 348 (mm). 5.2 0 E4 . ?U9I%P 8% = !888 688t 2 , $4F0 M8t C9I -888 F8p) !A! 5 4G 08 13T DF8x ?F7 mm) !A! 0.1 mm: E4F$ . 6 6|987 $4F 7 9 ., E:48t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t 87 $4F 170 4)%P +& 6|98 ,l9P8 F8x 9P4F:# 6#$ . &
15、d(2P 17 987 95FF 6|980 I 1B* 9DF , -18 9PF 728 957 7 .* 9IF# 8t ., E:4 1788 =y8 1F8$ . 7 768 9I8 7.1 98,l 76 . 68 : E:4 4G D7 E:4 F:E8x 957F8x & -P2%L# 2TGI -GI (Linear Deformation). 7.2 66 -C dGl . F$-1F 68 . 8 Ed - $* ,l2P! $+ &%72P ., E:48 87%T &# $80 M8 EdF$ . English Compressibility to EDS-T-76
16、57 - 10 15 mm Requirements Test Method Designation ,l 68 - EDS-T-7657 - 10 15 mm 7 9 4G - 4G F+ GM KOREA ENGINEERING STANDARDS EDS-T-7657 Copyright 2011 General Motors Company All Rights Reserved August 2011 Page 4 of 4 Version :3 9 Release and Revisions This standard was originated in June 1994. It
17、 was first approved by Engineering Standard Committee in June 1994. It was first published in June 1994. 9 9P9I -C P9I 8)Y ., E:48t 1994 “x 6 87 E:4 -Gl4 .7 %L6 , d3TE:41,h7 8F 1994“x 687 38%L6$ . ., E:48t 1994“x 687 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 3 AUG 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 )
