Here I am mentioning some of the most commonly used refrigerants and their cylinder colour codes:
R134A - Light Blue
R402A - Light Brown
R407C - Chocolate
R717 - Silver
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Some phased out refrigerants and their colour codes:
R12 - White
R22 - Green
R500 - Yellow
R502 - Orchid
Here I am mentioning some of the most commonly used refrigerants and their cylinder colour codes:
R134A - Light Blue
R402A - Light Brown
R407C - Chocolate
R717 - Silver
-----------------------------------------------------------------------------------------------------------------
Some phased out refrigerants and their colour codes:
R12 - White
R22 - Green
R500 - Yellow
R502 - Orchid