This standard specifies the maximum allowable concentration of hydrazine in the workshop air and the monitoring and testing methods. This standard applies to all types of enterprises that produce and use hydrazine.
GB 16221-1996 history
1996GB 16221-1996 Health standard for hydrazine in the air of workplace
GB 16221-1996 Health standard for hydrazine in the air of workplace was changed to GBZ/T 160.71-2004 Methods for determination of hydrazines in the air of workplace.