GB 16240-1996 Hygienic standard for rare earth dust in workshop air

This standard specifies the maximum allowable concentration of rare earth dust in workshop air and the monitoring and inspection method. This standard is applicable to the mining, beneficiation, smelting and application of rare earth products. GB 16240-1996 Hygienic Standard for Rare Earth Dust in Workshop Air GB16240-1996 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Health standard for rare-earth dust in the air of workplacebZxz.net
1 Subject content and scope of application
This standard specifies the maximum allowable concentration of rare-earth dust in the air of workplace and the monitoring and inspection method. This standard applies to the mining, beneficiation, smelting of rare earth ores and the application of rare earth products. 2 Reference standards
GB5748 Determination of dust in workplace air 3 Terminology
GB16240--1996
Rare earth dust: single and mixed rare earth dust containing rare earth metals and their oxides, including group and group mixed rare earths. 4 Hygiene requirements
The maximum allowable concentration of rare earth dust with a free silicon dioxide content of less than 10% in the workplace air is 5mg/m3. 5 Monitoring and inspection methods
The determination of dust concentration and free silicon dioxide content in workshop air shall be carried out in accordance with GB5748. Additional notes:
This standard was proposed by the Ministry of Health of the People's Republic of China. This standard was drafted by the School of Public Health of Beijing Medical University and the Institute of Labor Hygiene and Occupational Diseases of Baotou Steel. The main drafters of this standard are Zou Shiqu, Zou Tongtong and Lei Chunwen. This standard is interpreted by the Institute of Labor Hygiene and Occupational Diseases of the Chinese Academy of Preventive Medicine, the technical management unit entrusted by the Ministry of Health. Approved by the State Bureau of Technical Supervision on April 3, 1996554
Implementation on September 1, 1996
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