1、 ENGINEERING STANDARDS Test Procedure LIMITED USE EDS-T-7665 Test Method for Determining Compressibility and Recovery of Gasket Materials Do Not Use on New Program; No Replacement. 43G 8:8 680 G.)8 4G - Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program 72P# 957%L: 6#$ . Copyright 2011 General Motors
2、Company All Rights Reserved 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
3、take precedence. 1.1 Purpose and Applicability. This standard is used to determine of the short-time compressibility and recovery at room temperature of gasket materials. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifica
4、tions. ASTM F36 ASTM F104 2.2 GM Standards/Specifications. None 2.3 Additional References. None 3 Resources 3.1 Equipment. 3.1.1 Compression Testing Device. Tensile tester, capable of measuring the compression force by an appropriate compression test pack and consisting of the following components.
5、3.1.1.1 Anvil having a diameter of 31.7 mm or more. 3.1.1.2 Penetrator, a steel cylinder type: Refer to Table 1. 3.1.1.3 Dial graduated in 0.025 mm. 3.1.2 Cutter or Scissors. 1 P7 :0 : ., E:48 68t 48 !72P8 68 0 G.)88x 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
6、 E:4 / . ASTM F36 ASTM F104 2.2 GM E:4 / . None 2.3 dA E:4 / . None 3 4G 88 3.1 4G 8/x . 3.1.1 6 4G 8/x . 959 4G 7 D (Compression Test Pack)7 8F 6)Y ?U9I8 4#F+ $88 2e72) 8*6: 88 4G d 3.1.1.1 :*8 31.7 mm 818 6/ . 3.1.1.2 3D,) %P 4*$ GIB8 ?8d : E 1 =l9 . 3.1.1.3 0.025 mm 88p) #Q 4G F:E (Q 4G F:E8x 4F7
7、 6080 G.)88t $847 8F 1F$ . 68 (%) = F MP 100 G.)8 (%) = F M F M 100 7 d2P , P = Q 4G F:E F72P8 % (mm). R = G.)%P % (mm). 5.2 0 E4 . ?U9I%P 68 (G.)8 )8t 5 4G 08 13T DF8x 88F7 %) !A!+ , 0.1 %: E4F$ . 6 6|987 $4F 7 9 ., E:48t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t 87 $4F 170 4)%P +& 6|98 ,l9P8 F
8、8x 9P4F:# 6#$ . &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 . F$-1F 68 . 7.2 66 -C dGl . F$-1F 68 . 8 Ed - $* ,l2P! $+ &%72P ., E:48 87%T &# $80 M8 EdF$ . English Compressibility (Recovery) to EDS-T-7665 - 75 % min. Requirements Test
9、Method Designation ,l 68 (G.)8 ) - EDS-T-7665 - 75 % min. 7 9 4G - 4G F+ 9 Release and Revisions This standard was originated in June 1994. It 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 %
10、L6 , d3TE:41,h7 8F 1994“x 687 38%L6$ . ., E:48t 1994“x 687 2Q+ 3 C , 2Q+ /x8Bd 3 C , 8T7$2e 8# H 7$ . 1 hour at 100 E 2K. Cool in desiccator over a suitable desiccant at 21 to 30 E . / +100 E 2K8 7$72P 1 48 98=* G 2130 E 7$8 $448Bd 272P !5 . 6.4 22.2 1090 H Asbestos paper and millboard. / 2Q+ 98 , -
11、4 .(& . 4 hours at 100 E 2K. Cool as in Procedure A. / +100 E 2K8 7$72P 4 48 98=* G - A7t % 8F !5 . 6.4 4.4 218 F Cork composition Cork and cellular rubber. / *A 2e.8 F8T%P 8: , $)2e ,h . At least 46 hours at +21 to 30 E and 50 to 55 % relative humidity. / +21 30 E8 7$7t 50 55 %8 1$4 3$ F72P 46 48 8
12、1 98=* . 28.7 4.4 440 B Cork and rubber. / *A , ,h . At least 46 hours at +21 to 30 E and 50 to 55 % relative humidity. / +21 30 E8 7$7t 50 55 %8 1$4 3$ F72P 46 48 81 98=* . 12.8 4.4 351 G Treated and untreated papers from cellulose or other organic fibers. / 4*$): &%8 8Td 28T: 98 . 4 hours at 21 to
13、 30 E over a suitable desiccant followed immediately by at least 20 hours at 21 to 30 E and 50 to 55 % relative humidity. / +21 30 E 7$8 $448Bd 272P 4 48 -? G +21 30 E8 7$7t 50 55 %8 1$4 3$ F72P 20 48 81 98=* . 6.4 4.4 218 J Compressed nonasbestos sheet, non-asbestos beater sheet. / 6 /x2Q+ 3 C , /x
14、2Q+ /x8Bd 3 C . 1 hour at +100 E 2K. Cool in desiccator over a suitable desiccant at 21 to 30 E . / +100 E 2K8 7$72P 1 48 98=* G +21 30 E 7$8 $448Bd 272P !5 . 6.4 22.2 1090 K Non-asbestos paper and millboard. / /x2Q+ 98 , -4 .(& . 4 hours at +100 E 2K. Cool as in Procedure J. / +100 E 2K8 7$72P 448 98=* G - J7t % 8F !5 . 6.4 4.4 218
