Newly revised the 15-2004 standard is a safety must for HVAC professionals when working with refrigeration systems

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This standard specifies safe design, construction, installation, and operation of refrigeration systems.

This standard establishes safeguards for life, limb, health, and property and prescribes safety requirements. This standard applies (a) to the design, construction, test, installation, operation, and inspection of mechanical and absorption refrigeration systems, including heat pump systems used in stationary applications, (b) to modifications including replacement of parts or components if they are not identical in function and capacity, and (c) to substitutions of refrigerant having a different designation. 36 pp.

ASHRAE Standard 15-2004 - Safety Standard for Refrigeration Systems - Table of Contents:

• Foreword
• 1. Purpose
• 2. Scope
• 3. Definitions
• 4. Occupancy Classification
• 5. Refrigerating System Classification
• 6. Refrigerant Safety Classification
• 7. Restrictions on Refrigerant Use
• 8. Installation Restrictions
• 9. Design and Construction of Equipment and Systems
• 10. Operation and Testing
• 11. General Requirements
• 12. Precedence with Conflicting Requirements
• 13. Listed Equipment
• Appendix A: Calculations of the Maximum Allowable Concentration (Cm) of a Blend
• Appendix B: Guidelines for Emergency Discharge of Refrigerants When Required by Local Codes
• Appendix C: Refrigeration Classification Scheme (Normative)
• Appendix D: Informative References
• Appendix E: Normative References
• Appendix F: Method for Calculating Discharge Capacity of Positive Displacement Compressor Pressure-Relief Device
• Appendix G: Reserved for Future Use
• Appendix H: Allowable Equivalent Length of Discharge Piping (Normative)
• Appendix I: Emergencies in Refrigerating Machinery Rooms
• Appendix J: Addenda Description Information