GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When working with chemicals
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When working with a Bunsen burner
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When doing dissections
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Any time you are working in the lab
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Detailed explanation-1: -Loose clothing, neck-ties, lanyards, dangling jewelry and long hair must be tied back or removed to prevent them from getting caught in equipment when operating machinery that could present a physical hazard.
Detailed explanation-2: -Long hair can fall onto the lab bench/come in contact with chemicals or biologicals. Long hair is also a hazard around rotating equipment and open flames such as Bunsen burners or alcohol. Dangling neckwear may come in contact with chemicals, biologicals, or open flames.
Detailed explanation-3: -Loose hair and clothing must be restrained. Long hair and loose clothing that can get caught on glassware or otherwise be a hazard in lab should be pulled back. 5. Appropriate attire must be worn in lab, including shoes which cover the entire foot, and clothing which covers the legs and torso.
Detailed explanation-4: -Loose clothing and long hair must be tied back while working to avoid burning with open flames or inadvertent contamination.