What is the color-coding for a storage container of R-134a refrigerant?
Official USCG Answer & Rule Citation
Correct Answer: Option C — light blue
Industry color-coding standards establish light blue as the designated shade for containers and cylinders storing R-134a refrigerant. This visual identifier prevents accidental cross-contamination of refrigerants and lubricant types during servicing operations on marine HVAC and refrigeration plants.
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