Question Detail

MIC 121 Laboratory safety and ethics in microbiology Objective Question

Question

Before draining liquid biological waste into a designated sink, what is the required treatment?
Options
A Autoclaving for 15-30 minutes.
B Adding bleach to a 10% final concentration for 30 minutes.
Correct Answer
C Neutralising with an acid or base.
D Filtering through a 0.22 µm membrane.
Correct Answer

Option B is the correct answer.

Detailed Explanation

For liquid waste, the instruction is to 'Add bleach to 10% final concentration; leave 30 min contact time; drain to designated sink per local rules.'

Hint

Look for the specific chemical and contact time mentioned for liquid waste.

Question Info