Carboys (glass bottles) of corrosive liquids should be stacked:

Only if the lower tiers can bear the weight of the upper tiers safely. Section 9.4 (Class 8): Stack carboys only if the lower tiers can

Carboys (glass bottles) of corrosive liquids should be stacked:

ANSWER BREAKDOWN
  • A. Incorrect. "As high as you want" is not correct. Section 9.4 (Class 8): Stack carboys only if the lower tiers can bear the weight of the upper tiers safely.
  • B. Correct. Section 9.4 (Class 8): Stack carboys only if the lower tiers can bear the weight of the upper tiers safely.
  • C. Incorrect. "Only on their sides" is not correct. Section 9.4 (Class 8): Stack carboys only if the lower tiers can bear the weight of the upper tiers safely.
  • D. Incorrect. "Never; they must be on the floor" is not correct. Section 9.4 (Class 8): Stack carboys only if the lower tiers can bear the weight of the upper tiers safely.