This standard specifies the maximum permissible concentration of hemp dust in the air of workshops and its monitoring and inspection methods. This standard applies to various workplaces where flax, jute and ramie are spun, processed and their products are used. GB 16244-1996 Hygienic standard for hemp dust (flax, jute and ramie) in the air of workshops GB16244-1996 Standard download decompression password: www.bzxz.net

GB 16244-1996
This standard is formulated for the first time based on the data of on-site occupational hygiene survey, epidemiological survey, animal experiment and dose-response relationship, and with reference to foreign exposure limits, for use in workplace environmental monitoring and health supervision. In the past, the hemp textile industry generally adopted the standard of 10mg/m3 for "other dust" in TJ36-79 "Industrial Enterprise Design Hygiene Standard" promulgated in 1979. All kinds of hemp textile processing enterprises should implement this standard from the date of promulgation of this standard. bZxz.net
Because different types of hemp dust have different health hazards to workers, health standards for flax, jute and ramie dust are formulated separately.
This standard shall be implemented from September 1, 1996. The standard was proposed by the Ministry of Health of the People's Republic of China. The drafting units of this standard are: Sichuan Provincial Institute of Labor Hygiene and Occupational Disease Prevention and Control, Heilongjiang Provincial Institute of Labor Hygiene and Occupational Disease Prevention and Control, and Anhui Provincial Institute of Occupational Disease Prevention and Control.
The main drafters of this standard are: Shen Guoan, Ge Songyan, Feng Ying, Wu Zhongya, Lin Jin, Ji Weihui. This standard is interpreted by the Institute of Labor Health and Occupational Diseases of the Chinese Academy of Preventive Medicine, which is entrusted by the Ministry of Health. 572
National Standard of the People's Republic of China
Health standard for flax, jute and ramie dusts in the air of workplace
Health standard for flax, jute and ramie dusts in the air of workplaceGB16244-1996
This standard specifies the maximum allowable concentration of flax, jute and ramie dusts in the air of workplace and its monitoring and inspection methods. This standard is applicable to various workplaces where flax, jute and ramie are spun, processed and their products are used. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in the standard. When this standard was published, the versions shown were 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. GB5748--85 Determination of dust in workplace air 3 Hygiene requirements
The maximum allowable concentration of flax dust containing less than 10% free silicon dioxide in the workshop air is 3mg/m2, the maximum allowable concentration of jute dust containing less than 10% free silicon dioxide in the workshop air is 4mg/m, and the maximum allowable concentration of hemp dust containing less than 10% free silicon dioxide in the workshop air is 6mg/m4 Monitoring and inspection methods
The determination of hemp dust concentration and free silicon dioxide content in the workshop air shall be carried out in accordance with GB5748. Approved by the State Administration of Technical Supervision on April 3, 1996 and implemented on September 1, 1996
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