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ANSI/ASHRAE 15-2022/ANSI/ASHRAE 34-2022 package
Safety Standard for Refrigeration Systems and Designation and Safety Classification of Refrigerants (Standard 15-2022 packaged w/ Standard 34-2022)
ASHRAE Standard 15 specifies safe design, construction, installation, and operation of refrigeration systems. Establishes safeguards for life, limb, health, and property and prescribes safety requirements. Applies to: a. the design, construction, test, installation, operation, and inspection of mechanical and absorption refrigeration systems, including heat-pump systems used in stationary applications; b. modifications, including replacement of parts or components if they are not identical in function and capacity; and c. substitutions of refrigerants having a different designation. Dual units of measurement. ASHRAE Standard 34 is intended to establish a simple means of referring to common refrigerants instead of using the chemical name, formula, or trade name. It establishes a uniform system for assigning reference numbers, safety classifications, and refrigerant concentration limits to refrigerants. Identifies requirements to apply for designations and safety classifications for refrigerants and to determine refrigerant concentration limits. Provides an unambiguous system for numbering refrigerants and assigning composition designating prefixes for refrigerants. Safety classifications based on toxicity and flammability data are included along with refrigerant concentration limits for the refrigerants. This standard does not imply endorsement or concurrence that individual refrigerant blends are suitable for any particular application. Dual units of measurement.
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]