Ammonia Labeling & Signage: RAGAGEP Update, RETA Breeze, Apr. 2022

Part IV of Bill Lape’s pipe and equipment labeling series in the RETA Breeze continues with ammonia refrigeration pipe and equipment labeling, specifically Bulletin 114, now incorporated into IIAR2 as an informative appendix (Appendix Q). Being an informative rather than a normative appendix means that a facility can use several methods to comply with Section 5.16.4.


Part I highlights the possible choices for applicable good engineering practices that pertain to such labeling, highlighting the American Society of Mechanical Engineers (ASME) A13.1 and the International Institute of Ammonia Refrigeration (IIAR) Standard 2.

Part II delves into IIAR’s Bulletin 114 and how its guidelines for piping labels have changed over the years.

Part III reviews the pipe color guidelines in Bulletin 114 and its guidelines for component or equipment labeling.


Learn more about industrial Risk Management Plans and Process Safety Management.

RETA is the Refrigerating Engineers & Technicians Association.