Question Detail
Question
After applying 1% bleach to a biological spill, what is the recommended minimum contact time before removal?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Page 20 states under step 5 (Wait): '10-30 min for bleach; 1–5 min for ethanol — full contact time required'.
Hint
Bleach needs more time to be fully effective compared to ethanol.