This standard specifies the maximum permissible concentration and time-weighted average permissible concentration of wollastonite dust in workshop air and its monitoring and inspection methods. This standard is applicable to all types of industrial enterprises that produce and use wollastonite. GB 18546-2001 Occupational exposure limits for wollastonite dust in workshop air GB18546-2001 Standard download decompression password: www.bzxz.net

GB18546—2001
This standard is formulated for the first time based on toxicological experiments, on-site labor hygiene surveys and occupational epidemiological survey data. It is a health standard used for workplace environmental monitoring and health supervision. This standard is implemented from May 1, 2002
This standard was proposed by the Ministry of Health of the People's Republic of China. The drafting unit of this standard: Jilin Province Labor Hygiene and Occupational Disease Prevention and Control Institute. The main drafters of this standard: Jiao Hongyan, Dai Hong, Zhu Guizhi, Chen Bin, Li Tao. This standard is entrusted to the Labor Hygiene and Occupational Disease Institute of the Chinese Academy of Preventive Medicine for interpretation. 1 Scopewww.bzxz.net
National Standard of the People's Republic of China
Occupational exposure limit for wollastonite dust in the air of workplace
GB 18546--2007
This standard specifies the maximum permissible concentration and time-weighted average permissible concentration of wollastonite dust in the air of workplace and the monitoring and inspection method. This standard applies to all types of industrial enterprises that produce and use wollastonite. 2 Cited standards
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T57481985 Determination of dust in workplace air 3 Hygiene requirements
The maximum allowable concentration of wollastonite dust containing less than 10% of free silica in the workshop air is 10mg/m3. The time-weighted average allowable concentration of wollastonite dust containing less than 10% of free silica in the vehicle air is 5mg/m3. 4 Detection and inspection methods
The determination method of silica fume dust in workshop air shall be implemented in accordance with GB/T5748. Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on December 4, 2001 and implemented on May 1, 2002
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