Home / Standards / GB/T 5169.20-2021 GB/T 5169.20-2021 Active Fire hazard testing for electric and electronic products—Part 20: Surface spread of flame—Summary and relevance of test methods 电工电子产品着火危险试验 第20部分:火焰表面蔓延 试验方法概要和相关性 Standard Type GBT ICS 13.220.40;29.020 CCS K04 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A