Home / Standards / GB 18550-2001 GB 18550-2001 Abolished Occupational exposure limit for acetic anhydride in the air of workplace 车间空气中乙酐职业接触限值 Standard Type GB ICS 13.100 CCS C52 Status 废止 Issue Date 2001-12-04 Implementation 2002-05-01 Responsible Dept 国家卫生健康委 Drafting Unit N/A