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: 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).