Home / Standards / QB/T 2196-1996 QB/T 2196-1996 Active 玻璃工业用石英砂的分级 Standard Type QB ICS N/A CCS N/A Status Active Issue Date 1996-01-31 Implementation 1996-09-01 Centralized Committee 中国轻工总会 Issuing Authority 中国轻工总会