Home / Standards / GB/T 11986-1989 GB/T 11986-1989 Active Surface active agents--Powders and Granules--Measurement of the angle of repose 表面活性剂 粉体和颗粒休止角的测量 Standard Type GBT ICS 71.100.40 CCS G72 Status 现行 Issue Date 1989-12-25 Implementation 1990-12-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A