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AHRI Updates Guideline N for Refrigerant Container Colors
February 20, 2017

The Air Conditioning, Heating, and Refrigeration Institute (AHRI) has announced the publication of Addendum 1 to Guideline N-2016, Assignment of Refrigerant Container Colors. This addendum modifies the guideline to add two low pressure refrigerants, R-421A and R-514A, and a flammable refrigerant R-455A. The PMS colors assigned for printed materials, such as printed labels on refrigerant containers, for the newly added refrigerants are listed in Tables 1 and 2 of Guideline N, which is available for free download on the AHRI website.

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