Home / Standards / GB 10439-1989 GB 10439-1989 Abolished Hygienic standard for mixed dust fromfluorspar in the air of workplace 车间空气中萤石混合性粉尘卫生标准 Standard Type GB ICS 13.040.30 CCS C52 Status 废止 Issue Date 1989-02-24 Implementation 1989-10-01 Responsible Dept 国家卫生健康委 Drafting Unit N/A