tasting chemical samples using heat-resistant gloves if glassware is hot tying back long hair washing a chemical splash with lots of water
I gave my students this multiple choice question: Which action does not represent a safety procedure in the lab?

Only one answer is correct among these 4 choices:
- tasting chemical samples
- using heat-resistant gloves if glassware is hot
- tying back long hair
- washing a chemical splash with lots of water

Could you tell me which one is correct?

tasting chemical samples