Environmental concentration monitoring and result analysis of rocket propellant unsymmetrical dimethylhydrazine test
In order to grasp the concentration of unsymmetrical dimethylhydrazine in the surrounding environment during the unsymmetrical dimethylhydrazine test,and to guide the personnel to carry out effective protection and promote occupational health,the professional instruments were used to monitor and record the concentration of unsymmetrical dimethylhydrazine in the air at different points and time intervals on the experimental bench,in the laboratory and in the corridors outside the laboratory during the test process of particulate matter determination,density determination,etc.for the quality test of unsymmetrical dimethylhydrazine for Shenzhou 16 mission.The results showed that due to the volatilization of the toxicant during the test process of unsymmetrical dimethylhydrazine,the concentration of unsymmetrical dimethylhydrazine in the air of the workbench and laboratory exceeded the maximum permissible concentration in the workplace according to national regulations,and the concentration was directly proportional to the operation time of the test and the amount of exposure.Therefore,the propellant laboratory must establish a health-safety-environment management system,strengthen the infrastructure,continuously innovate and improve test method,take corresponding protection during the test,and establish a health record to improve the occupational health of personnel.
unsymmetrical dimethylhydrazinetestconcentration monitoringprotectionoccupational health
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