Preface
This is the third edition of CSA 8.1, Standard for Elastomeric composite hose and hose couplings for conducting propane and natural gas. It supersedes the previous editions published in 1984 and 1986.
Scope
1.1
This Standard applies to newly produced Type I, Type II, and Type III hose used for the transfer or conducting of propane and natural gas.
1.2
The hose and hose assemblies covered in this Standard are capable of operation at temperatures between -40°F (-40 °C) and 140°F (60 °C).
1.3
Type I hose refers to hose with a maximum operating pressure of 350 psig (2.4 MPa) and a minimum burst pressure of 1750 psig (12.1 MPa).
1.4
Type II and Type III hose refers to stainless steel braid reinforced hose designed with a maximum operating pressure of 350 psig (2.4 MPa) and a minimum burst pressure as shown in Table 2, Type II and Type III Hose.
1.5
Hose assemblies covered in this Standard are installed in accordance with the appliance and/or the equipment manufacturers instructions. If installation instructions are not present, installation of this product shall be completed in accordance with the Natural Gas and Propane Installation Code, CSA B149.1.
Note: Per the Natural Gas and Propane Installation Code, CSA B149.1, this Standard does not apply to the appliance applications covered by the Standard for Connectors for Gas Appliances, ANSI Z21.24 • CSA 6.10, the Standard for Gas Hose Connectors for Portable Outdoor Gas-Fired Appliances, ANSI Z21.54 • CSA 8.4, the Standard for Connectors for Movable Gas Appliances, ANSI Z21.69 • CSA 6.16, and the Standard for Connectors of Outdoor Gas Appliances and Manufactured Homes, ANSI Z21.75 • CSA 6.27.
1.6
Clause 5 covers hose couplings of a type to be used, with the hose complying with Clause 4 of this Standard, to fabricate hose assemblies for conducting propane and natural gas.
1.7
Clause 6 covers hose assemblies or types using hose complying with Clause 4 and couplings complying with Clause 5 of this Standard.
1.8
This Standard contains SI (Metric) units corresponding to the yard/pound quantities, the purpose being to allow the standard to be used in SI (Metric) units. (IEEE/ASTM SI 10, American National Standard for Metric Practice, or ISO 80000-1:2009, Quantities and units – Part 1: General, is used as a guide in making metric conversion from yard/pound quantities.) If a value for a measurement and a corresponding value in other units are stated, the first stated value is to be regarded as the requirement. The given corresponding value may be approximate. If a value for a measurement and a corresponding value in other units are both specified as a quoted marking requirement, the first stated unit, or both, are to be provided.
1.9
In this Standard, shall is used to express a requirement, i.e., a provision that the user shall 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.
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