ASHRAE Standard 15 establishes safeguards for life, limb, health, and property and prescribes safety requirements. This standard is directed toward the safety of persons and property on or near the premises where refrigeration facilities are located. It includes specifications for fabrication of tight systems but does not address the effects of refrigerant emissions on the environment. This standard 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 refrigerant having a different designation. The 2016 edition incorporates Addenda a, b, c, e, g to ASHRAE Standard 15-2013, which comprise the following changes to the 2013 edition: Incorporated changes to improve in the safe design, construction,installation, and operation of refrigeration systems. Updated requirements for safety relief systems, including revisions to relief vent pipe discharge locations and design provisions for headered relief vent systems Updated design pressure requirements applicable to systems using carbon dioxide; Modified overpressure protection for heat exchangers and pressure limiting devices for positive displacement compressors. 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. The standard also identifies requirements to apply for designations and safety classifications for refrigerants and to determine refrigerant concentration limits. This standard 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. The 2016 edition incorporates the 35 approved and published addenda to Standard 34-2013. Among the key changes to the 2016 edition are the following: Added thirty new refrigerants. Changed the source of the WEEL (Workplace Environmental Exposure Levels) values from AIHA (American Industrial Hygiene Association) to TERA OARS-WEEL (Toxicology Excellence for Risk Assessment\/Occupational Alliance for Risk Science). Changed requirements for the refrigerant application process. Changed the requirement for submission of standard test result data to validate the method used to determine burning velocity. Changed units required for refrigerant designation to require the submission of dual units. Revised R-744 toxicity data for the RCL, LC 50, cardiac sensitization NOEL, anesthesia NOEL, ATEL, RCL, and ATEL source.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | ASHRAE-15-2016 ANSI\/ASHRAE Standard 15-2016 <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | 1. PURPOSE 2. SCOPE 3. DEFINITIONS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 4. OCCUPANCY CLASSIFICATION <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 5. REFRIGERATING SYSTEM CLASSIFICATION 6. REFRIGERANT SAFETY CLASSIFICATION 7. RESTRICTIONS ON REFRIGERANT USE <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 8. INSTALLATION RESTRICTIONS <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 9. DESIGN AND CONSTRUCTION OF EQUIPMENT AND SYSTEMS <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 10. OPERATION AND TESTING <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 11. GENERAL REQUIREMENTS <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 12. PRECEDENCE WITH CONFLICTING REQUIREMENTS <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | INFORMATIVE APPENDIX A\u2014INFORMATIVE REFERENCES <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | NORMATIVE APPENDIX B\u2014NORMATIVE REFERENCES <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | INFORMATIVE APPENDIX C\u2014METHOD FOR CALCULATING DISCHARGE CAPACITY OF POSITIVE DISPLACEMENT COMPRESSOR PRESSURE RELIEF DEVICE <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | INFORMATIVE APPENDIX D\u2014TYPICAL MOODY FRICTION FACTORS FOR USE IN RELIEF PIPING LINE LENGTH LIMIT <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | INFORMATIVE APPENDIX E\u2014EMERGENCIES IN REFRIGERATING MACHINERY ROOMS <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | INFORMATIVE APPENDIX F\u2014ADDENDA DESCRIPTION INFORMATION <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | ASHRAE-34-2016 ANSI\/ASHRAE Standard 34-2016 <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | FOREWORD 1. PURPOSE 2. SCOPE 3. DEFINITIONS OF TERMS <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | 4. NUMBERING OF REFRIGERANTS <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | 5. DESIGNATION <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | 6. SAFETY GROUP CLASSIFICATIONS <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | 7. REFRIGERANT CONCENTRATION LIMIT (RCL) <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | 8. REFRIGERANT CLASSIFICATIONS 9. APPLICATION INSTRUCTIONS <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | 10. REFERENCES <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | INFORMATIVE APPENDIX A\u2014ISOMER DESIGNATION EXAMPLES <\/td>\n<\/tr>\n | ||||||
| 68<\/td>\n | NORMATIVE APPENDIX B\u2014DETAILS OF TESTING\u2014FLAMMABILITY <\/td>\n<\/tr>\n | ||||||
| 71<\/td>\n | INFORMATIVE APPENDIX C\u2014BIBLIOGRAPHY <\/td>\n<\/tr>\n | ||||||
| 72<\/td>\n | INFORMATIVE APPENDIX D\u2014REFRIGERANT DATA <\/td>\n<\/tr>\n | ||||||
| 78<\/td>\n | INFORMATIVE APPENDIX E\u2014TOXICITY AND FLAMMABILITY DATA FOR SINGLE-COMPOUND REFRIGERANTS <\/td>\n<\/tr>\n | ||||||
| 81<\/td>\n | INFORMATIVE APPENDIX A\u2014EXAMPLE CALCULATIONS FOR HEATS OF COMBUSTION <\/td>\n<\/tr>\n | ||||||
| 82<\/td>\n | INFORMATIVE APPENDIX G\u2014CALCULATION OF RCL AND ATEL FOR BLENDS <\/td>\n<\/tr>\n | ||||||
| 83<\/td>\n | INFORMATIVE APPENDIX H\u2014ADDENDA DESCRIPTION INFORMATION <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" ASHRAE Standard 15-2016 (packaged w\/ Standard 34-2016) — Safety Standard for Refrigeration Systems and Designation and Classification of Refrigerants (ANSI Approved)<\/b><\/p>\n |