1、 ENGINEERING STANDARDS Test Procedure SUPERCEDED EDS-T-3406 Method of Measuring Resistance to Abrasion of Mirror This standard may be applied only for current projects. It is Superceded for all future projects and replaced by CG1741 (OSRVM CTS; Part 3). 8% =7 -,) 8?8 ! *+2e ?U9I- Note: 8 E:48t G8 =9
2、7 FF7 957%L+ , FG P-P Program.Bd# CG1741 (OSRVM CTS; Part 3) $4=F7 957F$ . Copyright 2011 General Motors 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 regula
3、tions. Note: In the event of conflict between the Korean and English language, the Korean language shall take precedence. 1.1 Purpose. This standard aims at specifying the method of measuring resistance to abrasion by sand of mirrors in automobiles for observing by the driver of the area around the
4、vehicle or the rear view. 1.2 Applicability. This standard applies to mirrors for automobiles, which are classified into the inside mirror, outside mirror and under mirror according to attached positions or purpose of use. The abrasion resistance test applies to all these mirror types. 2 References
5、Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. BS 410 DIN 1164 DIN 4188 2.2 GM Standards/Specifications. EDS-T-3404 2.3 Additional References. None 3 Resources 3.1 Equipment. 3.1.1 Reflexibility Measuring Equipment. 3.1.1.1
6、Manufacturer. KOHZU (Japan). 3.1.1.2 Specifications. 3.1.1.2.1 Model. RRM-1. 3.1.1.2.2 Measuring Range. 0 100 %. 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 . ., 8t 79884 78x 17F2P 8% =8 :088 D# 47 G-8x 9IGH 4=dFd 88F 8% =7 -,) 8?:E +(7 8F 7+8
7、! *+2e ?U9I7 $4F7 9IF$ . 1.2 957 -88 . -,) 8?# .=88? D# 17 +957 &d(2P 818& -,) , 6x718& -,) -C 6$ -,) ) .*%L+ , !*+2e 4G 8t 8) F +& 8% =7 -,) 8?8 7+7 $4F7 957F$ . 2 4) E:4 / :0 : C-H +d%P 9I8 6# F 48 07 38%P E:48x 957F$ . 2.1 17 E:4 / . BS 410 DIN 1164 DIN 4188 2.2 GM E:4 / . EDS-T-3404 2.3 dA E:4 /
8、 . None 3 4G 88 3.1 4G 8/x . 3.1.1 -L18 ?U9I 8? . 3.1.1.1 9P8 G1 . KOHZU (Japan). 3.1.1.2 16 . 3.1.1.2.1 +$ . RRM -1. 3.1.1.2.2 ?U9I -88 . 0 100 %. GM KOREA ENGINEERING STANDARDS EDS-T-3406 Copyright 2011 General Motors Company All Rights Reserved August 2011 Page 2 of 4 Version : 3 3.1.2 Standard M
9、irror. Standard sample coated with BaSO4 (84.2 %). 3.1.3 Abrasion Resistance Measuring Equipment (See Figure 1). 3.2 Test Sand. 3.2.1 Sand in DIN 1164 Sheet 7 Grain Group (0.5 1.0). 3.2.2 Sand screened with a sieve of DIN 4188 - 0.8 mm mesh or BS 410 850 , mesh No. 18. 3.2.3 Test sand shall not be u
10、sed more than 100 times. 3.3 Test Piece. The mirror piece is detached from the mirror assembly to be mounted inclined on the abrasion resistance test equipment. Abrasion resistance to sand falling from a specified height is measured. 3.1.2 E:4 7 (Standard Mirror). G1 -H* (BaSO4)8x D9F E:4 4G D (84.2
11、 %). 3.1.3 ! *+2e 4G 8? (,* 1 =l9 ). 3.2 4G +( . 3.2.1 DIN 1164 Sheet 7 Grain Group (0.5 1.0)8 +( . 3.2.2 DIN 4188 0.8 mm +3 D# BS 410 850 P, +3 “L- 188 =) ) : +( . 3.2.3 4G +(# 100G 81 17F 3L 6$ . 3.3 4G D . 8% =7 -,) 8? :E 7+ ! *+2e 4G 8?7 1: 8=F :9I%P “872P !F%L# +(8 75F7 8F ! *+2e8x ?U9IF$ . Fig
12、ure 1: Abrasion Resistance Measuring Equipment / ,* 1: ! *+2e 4G 8? 4 Procedures 4.1 Conditions. 4 4G 9) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 3 AUG 2011 Apply new Engineering Standard Template. Superceded (Body & Ext. Subsystem Validation Team) / 4 d3TE:4 64 957 . F9I957 =* (Body & Ext. .E D4D4 )
