序言这是CSA/ANSI Z21的第五版。24 CSA 6.10，燃气器具用连接器。它取代了2015年、2006年、2001年和1997年出版的之前版本。本标准的制定符合加拿大标准委员会对加拿大国家标准的要求。CSA集团已将其作为加拿大国家标准发布。本标准已被美国国家标准协会（ANSI）批准为美国国家标准。本标准适用于本标准规定范围内的合格评定。 范围1。1包括本标准适用于新生产的燃气器具连接器，该连接器完全由新的未使用零件和材料制成，标称内径为1/4、3/8、1/2、5/8、3/4和1英寸，两端的配件配有锥形管螺纹，用于连接燃气器具和室内管道。本标准涵盖标称长度不超过6英尺（1.83米）的装配式电器连接器。本标准所列连接器适用于安装后不经常移动的燃气器具。在本标准中，未使用的连接器（包括端部配件）被视为未安装的连接器。 1.2符合本标准的适用性电器连接器适用于天然气和丙烷。1.3系统压力单位符合本标准的设备连接器用于燃气压力不超过1/2 psi（3.5 kPa）的管道系统。1.4测量单位本标准包含与码/磅数量相对应的SI（公制），目的是允许标准以SI（公制）单位使用。（IEEE/ASTM SI 10或CAN/CSA Z234.1用作从码/磅数量进行公制转换的指南。）括号中给出的值仅供参考和比较。 1.5对“psi”的引用除非另有规定，本标准中所有对“psi”的引用均为表压。1.6美国独有的条款第7条包含美国独有的条款。1.7加拿大独有条款第8条包含加拿大独有的条款。1.8本标准中的强制性语言“应”用于表示要求，即用户为遵守本标准有义务满足的规定；“应该”用于表示建议或建议但不需要的建议；“可”用于表示一个选项或在标准范围内允许的选项。 注释随附条款不包括要求或替代要求；随附条款的注释的目的是将解释性或信息性材料与文本分开。表和图的注释被视为表或图的一部分，可以作为要求编写。附件被指定为规范性（强制性）或信息性（非强制性）以定义其应用。

PrefaceThis is the fifth edition of CSA/ANSI Z21.24 CSA 6.10, Connectors for gas appliances. It supersedes the previous editions published in 2015, 2006, 2001, and 1997. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. This Standard has been approved by the American National Standards Institute (ANSI) as an American National Standard. This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.Scope1.1 InclusionsThis Standard applies to newly produced gas appliance connectors, constructed entirely of new unused parts and materials, having nominal internal diameters of 1/4, 3/8, 1/2, 5/8, 3/4, and 1 in, and having fittings at both ends provided with taper pipe threads for connection to a gas appliance and to house piping. This Standard covers assembled appliance connectors not exceeding a nominal length of 6 ft (1.83 m). Connectors listed under this Standard are intended for use with gas appliances that are not frequently moved after installation. For the purpose of this Standard, an unused connector, including end fittings, is considered to be a connector that has not been installed.1.2 Suitability Appliance connectors complying with this Standard are considered suitable for use with natural gases and propane.1.3 System pressure units Appliance connectors complying with this Standard are for use with piping systems having fuel gas pressures not in excess of 1/2 psi (3.5 kPa).1.4 Measurement units This Standard contains SI (metric) corresponding to the yard/pound quantities, the purpose being to allow the Standard to be used in SI (metric) units. (IEEE/ASTM SI 10 or CAN/CSA Z234.1 are used as a guide in making metric conversion from yard/pound quantities.) The values given in parentheses are for information and comparison only.1.5 References to "psi" All references to "psi" throughout this Standard are gauge pressure unless otherwise specified.1.6 Provisions unique to the United States Clause 7 contains provisions that are unique to the United States.1.7 Provisions unique to Canada Clause 8 contains provisions that are unique to Canada.1.8 Mandatory language In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.