The Official Magazine of the All-Natural Refrigeration Industry

The Natural Refrigeration Review is a quarterly publication that contains technical articles, regulatory and code updates, industry news and information about IIAR activities and publications. It is distributed by email to all IIAR Members and IIAR Contact lists.

SPRING 2026 NATURAL REFRIGERATION REVIEW

The Natural Refrigeration Review issues are available as a PDF downloads for both lIAR Members and Non-members, or as individual article posts below. Click the button below to view the full issue, or scroll through all the individual issue articles below.

View Issue
NDT Methods for the Ammonia Refrigeration Industry

In other industries, insulation is installed to protect people from touching hot process piping and getting burned; or to keep heat in the pipe to assist in lowering the viscosity of the process fluid thereby facilitating flow

Read More
Refrigerant Leak Detection Systems – Do What?

There are many devices on the market that can detect and respond to a refrigerant leak, but the International, Uniform, NFPA, ASHRAE and IIAR codes and standards provide limited guidance with respect to detector location, installation and equipment requirements

Read More
IIAR Takes Two-Pronged Approach to Engage with OSHA

With the initiation of the National Emphasis Program for Chemical Facilities (NEP) in 2009 and the nationalization of the program in late 2011, OSHA enforcement activity in the ammonia refrigeration industry has been intensifying.

Read More
APPLICATIONS OF THE AMMONIA LOW PRESSURE RECEIVER TO SMALL COMMERCIAL SYSTEMS

The so called Low Pressure Receiver system has been the subject of several papers since it was first introduced in 1972 However, the present situation in which ways are being sought to replace the excellent refrigerant, R22, with more environmentally friendly refrigerants would seem to provide opportunities for an extension of the application of ammonia LPR systems.

Read More
ARF Announces New Funding Program

The work of the Ammonia Refrigeration Foundation represents one of the most important activities in the industrial refrigeration industry, the advancement of technology through research and education.

Read More
IIAR Alliance Grows in India

As home to seventeen percent of the world’s population, preserving India’s food supply is a major endeavor; yet about 30 percent of food production in India goes to waste, highlighting the need for more large cold storage and food processing facilities where ammonia is the refrigerant of choice.

Read More
Committee Update

The IIAR Committees have always served as a forum for the open discussion and advancement of the important issues we face in our industry.

Read More
From the Technical Director

By now most all IIAR members are aware that the IIAR is endeavoring to create a suite of “cradle to grave” standards for the construction, operation and de-commissioning of ammonia refrigerating systems.

Read More
Chairman’s Message

The International Institute of Ammonia Refrigeration is gearing up for the 2012 IIAR Conference & Exhibition in Milwaukee, Wisconsin, and that means my term as Chairman is almost over.

Read More
IIAR Releases New, Updated PSM/RMP Program Guidelines

When the Process Safety Management and Risk Management program regulations were originally introduced in the mid-1990’s, the ammonia refrigeration industry scrambled to find the best way to comply with the largely undefined regulations. The International Institute of Ammonia Refrigeration responded by producing the industry’s first set of guidelines to help refrigeration companies meet federal regulations for facilities that use over 10,000 lbs. of ammonia.

Read More
Inspection Checklist: Tool or Weapon?

Recently, the IIAR Code Committee was asked to weigh in on the use of checklists for inspection of ammonia refrigeration systems.

Read More
OSHA National Emphasis Program Now In Place

As reported in the last issue of The Condenser, the Occupational, Safety and Health Administration was working late in 2011 to finalize the national rollout of the PSM Covered Chemical Facilities National Emphasis Program (NEP).

Read More
Moon Shots and Safety Relief Valve Life Prediction

Recent political figures have resurrected interest in the space program and the conversation invariably highlights all of the great technology spinoffs of NASA, from memory foam, freeze-dried foods and HACCP to Tang (maybe – not so much!).

Read More
From the Technical Director

Blow out panels are sections of walls, louvers, hatches or doors that are designed to relieve pressure from an explosion.

Read More
Chairman’s Message

The passing of Will Stoecker over the Labor Day weekend is a deeply felt loss, not only for his family, but also for all of us in this industry.

Read More
Wilbert F. Stoecker

When it comes to ammonia, said Will Stoecker, “The fact that it stinks is one of the best things about it!”

Read More
“Grandfathering” Application of Codes to Existing Facilities

If you operate a place of business, do you fear “the inspector?”

Read More
Parker Hannifin Announces Recall

Parker Hannifin has announced a recall of certain Sporlan/Refrigeration Specialties MA17 solenoid valves. Standard Machine & Manufacturing Co. manufactures MA17 solenoid valves for Sporlan and Refrigeration

Read More
IIAR Government Affairs

2010 has been a busy year for IIAR Government Affairs activities dealing with issues ranging from Occupational Safety and Health Administration (OSHA) regulations and Alliances, to chemical facility security policies.

Read More
A Magical Day of Golf – ARF 2011 Golf Tournament

The Ammonia Refrigeration Foundation (ARF) 2011Golf Tournament will be held Saturday, March 26, 2011 in conjunction with the IIAR 2011 Industrial Refrigeration Conference & Heavy Equipment Show in Orlando, Florida

Read More