岳把我用嘴含进满足我视频,国产精品av,日产乱码一二三区别免费必看,欧美亚洲自偷自拍 在线

Description

The UL 1581 is an internationally recognised standard test for evaluating fire safety for electric cables. The FTT UL 1581 test for flammability of cable materials gives a preliminary indication of their suitability for a particular application. The apparatus is supplied as a complete system incorporating all the features necessary for ease of use and safety. It conforms to UL 1581 vertical specimen Bunsen Burner tests and associated international standards. These are:

1. 1060. Vertical Flame and FT1 Tests
2. 1061. Cable Flame Test
3. 1080. VW-1 (Vertical Specimen) Flame Test
4. 1090. Horizontal-Specimen Appliance-Wire Flame Test
5. 1100. Horizontal-Specimen / FT2 Flame Test