Arkansas HVACR NewsMagazine May 2024

HVACR NewsMagazine May 2024

Tech News

4. ISO 817 Standard: The International Organization for Standardization (ISO) has its own standard (ISO 817) for the identification of refrigerants. This standard includes a letter and number code that provides information about the chemical composition and properties of the refrigerant. 5. UN Number: The United Nations (UN) assigns identification numbers to substances, including refrigerants, for transportation and safety purposes. This UN number can be used to identify a refrigerant when it is being transported. 6. Color Codes: Some refrigerants are associated with specific color codes for easy identification of cylinders or systems containing the refrigerant. However, reliance on color coding alone is not recommended, as it can be misleading due to variations in industry practices. It's important to use multiple sources of information to accurately identify a refrigerant, as different systems may be used in various contexts (e.g., manufacturing, transportation, safety, and industry standards). Always refer to official documentation and standards to ensure accurate identification and handling of refrigerants. READY TO HAVE FUN LEARNING MORE? Click on the following link for ESCO READY TO HAVE FUN LEARNING MORE?? Click on the following link for the ECO Show. https://www.linkedin.com/feed/update/u rn:li:activity:7142601752784044032

Refrigerant Numbering

Refrigerants are identified using various systems and nomenclatures that provide information about their chemical composition and properties. Some common methods for identifying refrigerants include: and Formula: Refrigerants are often identified by their chemical names and formulas. For example, chlorodifluoromethane is the chemical name for the refrigerant commonly known as R-22. The chemical formula for R-22 is CHClF2. System: The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) assigns unique numbers to refrigerants as part of its standard ASHRAE 34. The ASHRAE number is commonly used to identify and classify refrigerants. For example, R-134a and R-410A are ASHRAE designated refrigerants. 3. Trade Names and Branding: Many refrigerants are associated with specific trade names or brands. For instance, R-22 is often referred to by the brand name Freon, which is associated with DuPont (now Chemours). R-410A is often marketed under brand names like Puron. 1. Chemical Name 2. ASHRAE Numbering