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Question 1 of 1

Which of the following is not required before removing cylinders containing oxygen or gas mixtures other than air from the fill station?

• Pay for gas fills in advance.
• Analyze cylinder content using a personal analyzer.
• Correctly label cylinders with FO2 and MOD.
• Record FO2 and MOD in the fill station log ands sign it.

Explanation: You still have to pay for them — just not necessarily up front.