1、 ENGINEERING STANDARDS Test Procedure LIMITED USE EDS-T-7747 The Test Method for Determining the Resistance to Solvents of Organic Finishes Do Not Use on New Program; No Replacement. 8TdD9 9PE8 !79P2e 4G - Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program 72P# 957%L: 6#$ . Copyright 2011 General Moto
2、rs Company All Rights Reserved August 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, the Korean language sha
3、ll take precedence. 1.1 Purpose and Applicability. This standard specifies the test method for determining the solvent resistance of organic-coated products. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2
4、.2 GM Standards/Specifications. EDS-M-1101 2.3 Additional References. None 3 Resources 3.1 Equipment and Reagents 3.1.1 Solvent. The one specified on the paint material standard. 3.1.2 Wool or Smooth Cloth. 3.2 Test Piece. 3.2.1 Test pieces shall be of a product or subpart condition. 3.2.2 The size
5、of test pieces shall be (150B 100B 1) mm, and the material shall be metals specified on EDS-M-1101. 3.2.3 Test pieces shall be baked and dried at least 72 h hours before the test. 4 Procedures 4.1 Conditions. 1 P7 :0 : ., E:48 62P 0(8 79P* 9PF$ . 4.2.2 4G E+7 79P* ,oH =8x 17 688 H8x 4F7 6 25 50 mm8
6、l8) 10 G 7.)F$ . 4.2.3 4G :E E+7 4F:# H8x 8F F7 6 F$ . 5 4G $8Bd 5.1 D4 . 4G G 8U6|8p) DD9IF+ $88 &%=8p) EG8F$ . Rating / &%= Paint surface / $8%P E+ Paint residue on cloth / =7 ,o8t D8C8 6 0 No change. / -G 68 . None. / D8C4 ,o: 68x . 1 Slight (barely observable). / 4-7 -G (-G DD9I8 6)X7 9I$ ). Tra
7、ce amount. / D8C8 H95+ .(8 9I$ . 3 Moderate (readily noticeable). / .(B-G (-G* DD9IF 3L 88 ). Readily noticeable. / D8C4 ,o# 8x .0 3L 88 . 5 Severe (very obvious). / 4 F -G (+-eF -G ). Saturated with color. / =7 ,o8t D8C4 .*%T 7 . 6 Safety This standard may involve hazardous materials, operations, a
8、nd 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 Glos
9、sary. Not applicable. 7.2 Acronyms, Abbreviations, and Symbols. Not applicable. 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Test to EDS-T-7747 6 6|987 $4F 7 9 ., E:48t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t 87 $4F 170 4)%P +& 6|98 ,l9P8 F8
10、x 9P4F:# 6#$ . &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 &# $80 M8 EdF$ . Test to EDS-T-7747 GM KOREA ENGINEERING STANDARDS EDS-T-7747 Copyright 2011 Gene
11、ral Motors Company All Rights Reserved August 2011 Page 3 of 3 Version : 4 9 Release and Revisions This standard was originated in October 1994. It was first approved by Engineering Standard Committee in October 1994. It was first published in October 1994. 9 9P9I -C P9I 8)Y ., E:48t 1994“x 1087 E:4
12、 -Gl4 .7 %L6 , d3TE:41,h7 8F 1994 “x 10 87 38%L6$ . ., E:48t 1994 “x 10 87 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 4 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 )
