The third (3rd) public review of draft standard IIAR 4-202X, Installation of Closed-Circuit Ammonia Refrigeration Systems is
now open. Substantive changes resulting from this public review will also
be provided for comment in a future public review if necessary.
IIAR 4 specifies criteria for the installation of closed-circuit ammonia
refrigeration systems. It presupposes that the persons who use the document
have a working knowledge of the functionality of ammonia refrigerating
system(s) and basic ammonia refrigerating practices and principles. This
standard is intended for those who are involved with the installation of
closed-circuit ammonia refrigeration systems. This standard shall apply
only to closed-circuit refrigeration systems utilizing ammonia as the
refrigerant. It supplements existing general refrigeration standards issued
by IIAR and other organizations such as ASME and ANSI. It is not intended
to supplant existing safety codes (e.g., model mechanical or fire codes).
IIAR has designated the revised standard as BSR/IIAR 4-202X. Upon approval
by the ANSI Board of Standards Review, the standard will receive a
different name that reflects this approval date.
We invite you to participate in the third (3rd) public review of BSR/IIAR 4-202X. IIAR will use the American National
Standards Institute (ANSI) procedures to develop evidence of consensus
among affected parties. ANSI's role in the revision process is to establish
and enforce standards of openness, balance, due process, and harmonization
with other American and International Standards. IIAR is the
ANSI-accredited standards developer for BSR/IIAR 4-202X, and is responsible
for the technical content of the standard.
This site includes links to the following attachments:
The 30-day public review period will be from September 25th, 2020 to October 25th, 2020. Comments are
due no later than 5:00 pm Eastern Standard Time on October 25th, 2020.
Thank you for your interest in the third (3rd) public review of BSR/IIAR
4-202X,Installation of Closed-Circuit Ammonia Refrigeration Systems.