ASHRAE STD 15 & 34
Designation and Safety Classification of Refrigerants
|Publication Date:||20 January 2018|
Addendum n makes several changes with the purpose of aligning the toxicity classification procedure to be based on the nominal formulation of the blend.
Note: In this addendum, changes to the current standard are indicated in the text by underlining (for additions) and
strikethrough (for deletions) unless the instructions specifically mention some other means of indicating the changes.