CSA 8.1:2015 pdf download.Elastomeric composite hose and hose couplings for conducting propane and natural gas
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.
1.8 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.
4.5.1 Type I hose
The reinforcement shall be of good quality cotton or suitable synthetic fibers, or stainless steel evenly and firmly applied over the tube. The reinforcement shall be thoroughly impregnated with a rubber compound, which shall cause the plies to adhere firmly to each other and to the tube and cover.
4.5.2 Type II and Type III hose
The reinforcement shall consist of a stainless steel wire braid and may have an inner and/or outer braid of cotton or synthetic fibers, braided under proper tension to meet the requirements of this Standard. No length of hose shall contain broken or spliced reinforcing wires. The stainless steel wire braid shall provide a surface coverage of not less than 90 percent.CSA 8.1 pdf download.