Home / Standards / GB/T 38050-2019 GB/T 38050-2019 Active Test method for permeability of emulsified asphalt 乳化沥青渗透性测定法 Standard Type GBT ICS 75.140 CCS E43 Status 现行 Issue Date 2019-10-18 Implementation 2020-05-01 Responsible Dept 国家标准委 Drafting Unit N/A