PT Chart Index
|Charts use °F and psig. SI Charts are available for SI Boards. Colours show AHRI GUIDELINE N-1995
refrigerant container colour assignment. AHRI is now specifing that all refrigerant containers should
have one uniform paint color, grey RAL 7044 and that the previously assigned colors should be transitioned
to the new standard color by 2020. With the increasing number of refrigerants approved for use, there was
concern over the potential for misidentification and confusion. This will force referencing the container
label rather than referring to the colour of the jug. Flammable refrigerants must be identified with a red band.