1 point per true or false question
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1. The sampling time for the permissible concentration during short-term exposure is generally 15 minutes, and the sampling time for the maximum permissible concentration is also usually not less than 15 minutes. ( )2. Benzene, toluene, and xylene in workplace air can be collected using microporous filter membranes. ( )3. The “Catalogue of Classified Management for Occupational Disease Hazards in Construction Projects (2012 Edition)” classifies the risk levels of occupational disease hazards into mild, moderate, and severe. ( )
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1. The sampling time for the permissible concentration during short-term exposure is generally 15 minutes, and the sampling time for the maximum permissible concentration is also usually not less than 15 minutes. ( Wrong ) 2. Benzene, toluene, and xylene in workplace air can be collected using microporous filter membranes. ( Wrong ) 3. The \"Catalogue for Classified Management of Occupational Disease Hazards in Construction Projects (2012 Edition)\」classifies the risk levels of occupational disease hazards into mild, moderate, and severe. ( Wrong )
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1. The sampling time for the permissible concentration during short-term exposure is generally 15 minutes, and the sampling time for the maximum permissible concentration is also usually not less than 15 minutes. ( Wrong ) 2. Benzene, toluene, and xylene in workplace air can be collected using microporous filter membranes. ( Wrong ) 3. The \"Catalogue for Classified Management of Occupational Disease Hazards in Construction Projects (2012 Edition)\」classifies the risk levels of occupational disease hazards into mild, moderate, and severe. ( Wrong )
1. The sampling time for the permissible concentration during short-term exposure is generally 15 minutes, and the sampling time for the maximum permissible concentration is also usually not less than 15 minutes. ( ) 2. Benzene, toluene, and xylene in workplace air can be collected using microporous filter membranes. ( ) 3. The “Catalogue of Classification and Management of Occupational Disease Hazards in Construction Projects (2012 Edition)” classifies the risk levels of occupational disease hazards into mild, moderate, and severe. ( ) Wrong wrong wrong
1. The sampling time for the permissible concentration during short-term exposure is generally 15 minutes, and the sampling time for the maximum permissible concentration is also usually not less than 15 minutes. ( Wrong ) 2. Benzene, toluene, and xylene in workplace air can be collected using microporous filter membranes. ( Wrong ) 3. The \"Catalogue for Classified Management of Occupational Disease Hazards in Construction Projects (2012 Edition)\」classifies the risk levels of occupational disease hazards into mild, moderate, and severe. ( Wrong )