What is the maximum safe amount of refrigerant for a recovery cylinder with a water capacity of 50 lb, holding a refrigerant with a specific gravity of 0.9?
A) 50 lb × 0.9 = 45 lb B) 50 lb × 0.8 × 0.9 = 36 lb
C) 50 lb × 0.8 = 40 lb D) 50 lb
B
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