NFPA CFPS Exam - Topic 8 Question 27 Discussion

Actual exam question for NFPA's CFPS exam

Question #: 27
Topic #: 8

[All CFPS Questions]

What is the background color used from the source to the outlets of a nitrous oxide medical gas system?

ABlack

BYellow

CBlue

DGray/black

Show Suggested Answer

Suggested Answer: C

The background color used from the source to the outlets of a nitrous oxide medical gas system isblue.This is the standard color coding for nitrous oxide cylinders and pipelines in medical gas pipeline systems12.The color coding helps to identify the gas type and prevent accidental misconnections or cross-contamination3.The color coding also indicates the pressure and flow characteristics of the gas system4.Reference:

Colour coding of copper pipes in Medical gas pipeline system according ...

Doc 177 20 Medical Gas Cylinders Colour Coding - EIGA

Medical Gas Coding Color Chart & Explanation - Bay Corporation

Medical gases Health Technical Memorandum 02-01: Medical gas pipeline ...

by Arthur at Jun 30, 2026, 07:17 AM

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Margurite

2 hours ago

I feel like blue is definitely a color associated with nitrous oxide, but I could be confusing it with something else.

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Judy

5 days ago

I practiced a question like this, and I think it was gray/black for nitrous oxide, but I might be mixing it up with another gas.

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Josefa

10 days ago

I remember something about yellow being used for medical gases, but I can't recall if that applies to nitrous oxide specifically.

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Titus

16 days ago

I think the background color for nitrous oxide is blue, but I’m not entirely sure.

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