Home / Standards / GB/T 4909.9-2009 GB/T 4909.9-2009 Active Test methods for bare wires - Part 9: Test for continuity of coating - Sodium polysulfide solution method 裸电线试验方法 第9部分:镀层连续性试验 多硫化钠法 Standard Type GBT ICS 29.060.10 CCS K11 Status 现行 Issue Date 2009-03-19 Implementation 2009-12-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A