Home / Standards / GB/T 29025-2012 GB/T 29025-2012 Abolished Determination of particle size distributions - Electrical sensing zone method 粒度分析 电阻法 Standard Type GBT ICS N/A CCS A28 Status 废止 Issue Date 2012-12-31 Implementation 2013-10-01 Responsible Dept 国家标准委 Drafting Unit N/A