ANSI Z21.13B-1994 (R1998)

The standards set forth herein apply to the twenty-second edition of the Standard for Gas-Fired Low-Pressure Steam and Hot Water Boilers, ANSI Z21.13-1991, and Addenda thereto, Z21.13a-1993, and supersede corresponding standards therein. Following their preparation by the supervising subcommittee, they were accepted by Accredited Standards Committee Z21 and subsequently approved as an American National Standard by the American National Standards Institute, Inc.

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