这是一个可搜索的PDF。序言本文所述标准适用于手动操作压电火花气体点火系统和部件标准的第一版ANSI Z21。77-1995/CGA-6.23-M95，并取代其中的相应标准。在监督小组委员会对其进行修复后，ANSI、跨省天然气咨询委员会、美国国际认证服务公司和加拿大天然气协会接受了这些建议，并随后予以批准。注:除编辑性变更外，其他变更由页边空白处的垂直线表示。

This is a searchable PDF.PrefaceThe standards set forth herein apply to the first edition of the Standard for Manually Operated Piezo-Electric Spark Gas Ignition Systems and Components, ANSI Z21.77-1995/CGA-6.23-M95, and supersede corresponding standards therein. Following their p reparation by the supervising subcommittee, they were accepted by ANSI, the Interprovincial Gas Advisory Council, International Approval Services - U.S., Inc. and the Canadian Gas Association and subsequently approved.Note: Changes, other than editorial, are denoted by a vertical line in the margin.