CSA/ANSI Z21.54:19 (R2024)/CSA 8.4:19 (R2024)

Preface

This is the fourth edition of CSA/ANSI Z21.54 - CSA 8.4, Gas hose connectors for portable outdoor gas- fired appliances . It supersedes the previous editions published in 2014, 2002, and 1996. The fourth edition of this Standard has been updated to reflect current industry practice, and address CSA's guide on drafting standards. Major changes to this edition include the following

1. Administrative provisions (e.g., the term "shall" in the Scope, marking to identify standard) were modified. b) Allow for larger connector dimensions utilized on higher BTU capacity gas fired appliances. c) Tables were updated to align dimensions referenced in standard and increase hose sizes to align with testing criteria added. d) Additional performance tests included to evaluate the product and align with other industry standards (e.g., ammonia vapor, aging, sunlight resistance, and salt spray).

This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. This Standard was prepared by the Z21/CSA Joint Technical Subcommittee on Connectors for Gas Appliances, under the jurisdiction of the Z21/83 Technical Committee on Performance and Installation of Gas Burning Appliances and Related Accessories and the Strategic Steering Committee on Fuels and Appliances. It has been formally approved by the Z21/83 Technical Committee, and the Technical Committee on Gas Appliances and Related Accessories. 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

Scope

1.1

This Standard applies to gas hose connectors (See Clause 3 Definitions), hereinafter referred to as connectors. They are conduits for conveying gas and depend for gas-tightness on the wall structure of the hose material. Such connectors are

1. newly produced and constructed entirely of new, unused parts and materials
2. and equipped with a fitting at each end provided with standard taper pipe threads

1.2

Connectors covered by this Standard are intended for

1. connection of portable outdoor gas-fired appliances to the gas supply piping
2. use in unconcealed outdoor locations
3. use only in locations where they will not be likely to be subject to excessive temperatures [above 200°F (93.5 °C)]
4. use with natural gas, manufactured gas, mixed gases, propane and LP gas-air mixtures
5. and use on gas piping systems having fuel gas pressures not in excess of 1/2 psi (3.45 kPa)

1.3

All references to psi throughout this Standard are to be considered gauge pressure unless otherwise specified.

1.4 Annex

A contains provisions that are unique to Canada.

1.5

Clause 2 contains a list of standards specifically referenced in this Standard and sources from which these reference standards may be obtained.

1.6

This Standard contains SI (Metric) equivalents to the yard/pound quantities, the purpose being to allow the standard to be used in SI (Metric) units. (IEEE/ASTM SI 10 is used as a guide in making metric conversion from yard/pound quantities.) If a value for a measurement and an equivalent value in other units, the first stated is to be regarded as the requirement. The given equivalent value may be approximate. If a value for a measurement and an equivalent value in other units, are both specified as a quoted marking requirement, the first stated unit, or both shall be provided.

1.7

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.