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Related Flashcards
Cards In This Set
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What are the 3 major elements of WHMIS?
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Labels, MSDS, education/training
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With regards to biological hazards, how many risk groups are there?
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Risk group 1 = low individual & low community risk
Risk group 2 = moderate individual & low community risk Risk group 3 = high individual & low community risk Risk group 4 = high individual & high community risk |
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With regards to biological hazards, how many containment levels are they? Which level are most labs categorized under?
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3 levels;
most labs are level 2. |
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What is the major difference between decontamination & sterilization?
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Decontam = kills some bugs & makes items safe for disposal or use
Sterilization kills all bugs (& spores) |
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What temp & pressure settings are req'd for autoclaving? How long should an autoclave cycle last?
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Temp = 121 degrees C
Pressure = 15 psi (10.3 kPa) Time = 30 - 60 mins |
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What indicators can be used to QC the autoclave?
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Chemical indicators: tape (like at the vet clinic), or paper strips
Biological indicator bacillus stearothermophilus |
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What % bleach solution is generally used for spill control? What % is used for wiping down surfaces?
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1:10 dilution for spills
1:100 dilution for wiping down surfaces |
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With a class 1 BSC, what is protected, product or worker?
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Only the worker is protected
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What are some features of a class 2 A BSC?
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30% of filtered air is returned to lab, 70% is filtered and recirculates in the BSC. Min average face velocity is 75 ft/min (0.38 m/s)
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What are some features class 2B BSCs?
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No air is returned to the lab; this is the most commonly used type of BSC; min average face veloicty is 100 ft/min (0.5 m/s)
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What is the difference between B1, B2, and B3 BSCs?
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B1: 30% of air re-circulates in the BSC, 70% exhausted to outside
B2: 100% of air exhausted to outside B3 = modified A: 30% exhausted to outside, 70% re-circulates |
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Which class does a BSC that is totally enclosed and gas tight belong to?
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Class 3
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What 7 pieces of information must be on a WHMIS supplier label?
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Name of product, name of supplier, hazard symbols, risk phrases, precautionary statements, first aid info, MSDS reference
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What 4 pieces of information must be on a WHMIS workplace label?
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Name of product, handling precautions, exposure procedure, MSDS reference
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What are the 9 pieces of information found on a MSDS?
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Product info, hazardous ingredients, physical data, fire/explosion data, reactivity data, toxicological data, preventative measures, first aid procedures, who prepared the MSDS and the date is was prepared
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