Home / Standards / GB/T 4742-1984 GB/T 4742-1984 Active Standard test method for lashing toughness ofdomestic ceramic 日用陶瓷冲击韧性测定方法 Standard Type GBT ICS 81.060.20 CCS Y24 Status 现行 Issue Date 1984-11-02 Implementation 1985-08-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A