CSA/AM - ANSI Z83.4A-1992
Direct Gas-Fired Make-Up Air Heaters
|Publication Date:||1 January 1992|
The standards set forth herein apply to the fifth edition of the Standard for Direct Gas-Fired Make-Up Air Heaters, ANSI Z83.4-1991, and supersede corresponding standards therein. Following their preparation by the supervising subcommittee, they were accepted by Accredited Standards Committee Z83 and subsequently approved as an American National Standard by the American National Standards Institute, Inc.
NOTE: Changes, other than editorial, are denoted by a vertical line in the margin.