CSA 8.4:2019 pdf download.Gas hose connectors for portable outdoor gas-fired appliances
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:
a) newly produced and constructed entirely of new, unused parts and materials; and
b) equipped with a fitting at each end provided with standard taper pipe threads.
1.2 Connectors covered by this Standard are intended for:
a) connection of portable outdoor gas-fired appliances to the gas supply piping;
b) use in unconcealed outdoor locations;
c) use only in locations where they will not be likely to be subject to excessive temperatures [above 200°F (93.5 °C)];
d) use with natural gas, manufactured gas, mixed gases, propane and LP gas-air mixtures; and
e) use on gas piping systems having fuel gas pressures not in excess of 1/2 psi (3.45 kPa).
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. (EEE/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.
covering of the connector shall be made with the flame varied from blue to yellow. If flaming or glowing combustion of the covering material on the connector is observed and ceases 60 seconds or less after removal of the ignition flame, the flame is to be reapplied at the same location for 1 minute immediately after the flaming or glowing combustion stops. The ignition flame shall then be withdrawn and the duration of the flaming or glowing combustion noted.
The duration of flaming or glowing combustion after withdrawal of the ignition flame shall not exceed 60 seconds, nor shall any flame or glowing combustion travel to the end of the connector farthest from the point of application of the ignition flame.
4.3.1 The nominal length of a connector shall not exceed 15 ft (4.57 m). The nominal length shall refer to the overall length, including fttings. The actual length of any sample shall be within minus 1/2 in (12.7 mm) to plus 2 in (50.8 mm) of its nominal length.CSA 8.4 pdf download.