1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards PENTRATION RESISTANCE TEST OF SAFETY GLASS FOR AUTOMONILES Do Not Use on New Programs. Being Replaced by GMW3136 EDS-T-3514 ISSUED DATE: 1995. 01. 06 REVISED DATE: 2008. 10. 23 VERSION: 4 (Superceded) EDS-T-3514PENTRA
2、TION RESISTANCE TEST OF SAFETY GLASS FOR AUTOMONILES PAGE: 1/2 ISSUED DATE: 1995. 01. 06 REVISED DATE: 2008. 10. 23 VERSION: 4 GM DAEWOO Auto & Technology Note: This standard may be applied only for current project. It is Superceded for all future projects and replaced by GMW3136. 1. PURPOSE This st
3、andard specifies whether the laminated glass which use for windscreen, has a certain min. resistance to penetration. 2. SCOPE This standard applies to the safety glass (laminated glass with a high molecular film) for the front glass of automobiles 3. TEST PIECE (SPECIMENS) Flat laminated glass of ap
4、prox. 300300 mm manufactured by the same method as that for the product or that of approx. 300300 mm cut out from the product shall be furnished to the test. 4. EQUIPMENT 4.1. The apparatus shall be capable of drooping the ball freely from the specified height. 4.2. The steel frame shown in Fig. 1.
5、Shall be used Figure 1 EDS-T-3514PENTRATION RESISTANCE TEST OF SAFETY GLASS FOR AUTOMONILES PAGE: 2/2 ISSUED DATE: 1995. 01. 06 REVISED DATE: 2008. 10. 23 VERSION: 4 GM DAEWOO Auto & Technology 4.2.1. Steel ball The steel ball used shall have smooth surface, and shall be 226020g in mass, and approx.
6、 82mm in diameter. 5. PROCEDURE 5.1. Keep the specimen in a room of temperature at 232 for at least 4 hours immediately preceding the test. 5.2. Place the specimen in the supporting fixture supported horizontally, so that the face which represents the inward face on the vehicle faces upwards. 5.3. D
7、rop the steel ball as it is at a standstill, without being subjected to any impetus, from the height of 4 meters onto the centre of the specimen face. The point of impact shall be within 25mm from the centre of the specimen face. The impact given onto one specimen shall be limited to only once. 5.4.
8、 Examine whether the specimen is penetrated. 6. RESULT OF THE TEST Six test specimens shall be tested. If all the steel ball shall not pass through the specimen within 5sec. After the moment of impact, the safety glass shall be acceptable. If the five steel ball shall not pass through the specimen, further six specimens shall newly be re-tested, and al the six specimens satisfy the requirements, the glass shall be acceptable. If the specimen less than or equal to four satisfy, the glass shall be rejected. 7. REFERENCE KSL 2007 Safety glasses for road vehicles
