scope:

PREFACE

The standards set forth herein apply to the seventh edition of the Standard for Recreational Vehicle Cooking Gas Appliances, ANSI 221.57-1993, and Addenda Z2157a-1997, and supersede corresponding standards therein. Following their preparation by the supervising subcommittee, they were accepted by Accredited Standards Committee 221183 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.

On June 30th 1997, the Canadian Standards Association (CSA) acquired International Approval Services (IAS) which was until then a joint venture of the American Gas Association (AGA) and the Canadian Gas Association (CGA). Under this agreement CSA acquired the complete range of IAS standards administration, certification and registration products and services for appliances and accessories fueled by natural and liquefied petroleum gases.