Home / Standards / GB/T 4737-2020 GB/T 4737-2020 Active Test method for osmosis of daily-use pottery 日用陶器渗透性测定方法 Standard Type GBT ICS 81.060.20 CCS Y24 Status 现行 Issue Date 2020-12-14 Implementation 2021-07-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A