Bulletin has for over 20 years focused on correct labeling of pipe and equipment in an industrial ammonia refrigeration system. Many different acronyms have been started over the years keeping in the consistency of the IIAR spirit to label an ammonia pipe. When IIAR first released bulletin in they did not give many labels for example, just criteria where to put them and how to stay in the spirit of the publication. Below one might find some that are commonly used today.

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Browse All Regulations. I'm looking for support for Anhydrous ammonia is widely used in food production as a cost-effective refrigerant. Although efficient, ammonia is a very dangerous chemical that can pose serious risks to those working with, or around, the substance.

The corrosive properties of ammonia are extremely hazardous to human health; within just a few seconds of contact, it can burn, blister, and permanently damage skin. Inhalation of ammonia can not only cause long-term health issues, but in serious cases can even cause death. Because of this, properly labeling ammonia-carrying pipes is critical for safety and staying OSHA compliant. First published in , Bulletin is now accepted as an industry standard, and was based off similar standards from ANSI.

It is a guideline used for identifying ammonia in pipes that not only promotes safety for employees, but can facilitate maintenance, and provide crucial information to emergency responders. In addition to pipe labels, IIAR recommends marking all components of the piping and refrigeration system. One of the most effective ways to do this is by utilizing valve tags for hand and control valves.

Before someone opens a particularly dangerous valve, they need to be alerted to the contents of the pipe. Visual communication such as pipe marking keeps workers safe and ensures that your facility stays in compliance with OSHA regulations.

Communicating through labels about the contents of pipes means first responders and workers can navigate your workplace with a lower risk of accident or injury. Remember: a safe facility is a successful facility. Floor Marking. Tool Organization.

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More Resources. The Safety Brief Free podcast with short industry updates and tips for safety managers. About Us. Contact Us. Sign-up for deals and discounts Plus free e-books, how-to's and industry updates. Jesse Allred March 14, 2 min read. Low pressure is represented with a green band and high pressure is printed on a red band. Physical State Section: Ammonia flows through pipes either in a liquid or vapor state.

Liquid ammonia is indicated with LIQ printed in black letters on a yellow band and vapor is indicated with VAP printed in black on a blue band. Directional Arrow: Finally, a black arrow represents the direction of flow. Helpful Resources.


IIAR Bulletin #114

As an essential manufacturer, we are open and fulfilling orders as usual. For Customer Service: chat or call Track Order Sign In. View Our Full Product Index. Bulletin states that all piping mains, headers and branches should be identified as to the physical state of the refrigerant, i.


IIAR Bulletin 114



What Color are your Ammonia Pipes?


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