Home / Standards / GB/T 4195-1984 GB/T 4195-1984 Active Method for measuring the distribution of the powder size of tungsten and molybdenum method by the balance for the fall of the particles 钨、钼粉末粒度分布测试方法(沉降天平法) Standard Type GBT ICS 77.040.30 CCS H21 Status 现行 Issue Date 1984-03-09 Implementation 1984-11-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A