This International Standard provides specification and testing requirements for high pressure flexible hose assemblies intended to be connected to gas cylinders, bundles of cylinders or trailers for use when filling and emptying gas at production sites and also for customer use. This International Standard applies to flexible hose assemblies with rated pressures up to 1000bar for use in the temperature range of −40° C to +65° C. This International Standard is not applicable to: rubber and plastics flexible hose assemblies for welding, cutting and related processes up to 45MPa (450bar) for customer use (see ISO14113 ); high pressure flexible hose assemblies for use with medical gas systems for customer use (see ISO21969 ); low pressure hose assemblies for use with medical gases, for customer use (see ISO5359 ); rubber and thermoplastic low pressure hose assemblies for welding, cutting and related processes for customer use (see ISO3821 or ISO12170 ); flexible hose assemblies for cryogenic applications (see ISO21012 ); flexible hose assemblies for liquid petroleum gas (LPG). NOTE Flexible hose assembly designs which pass the type test approval test described in this International Standard can have a lower ratio of burst pressure to rated pressure than stated in other standards.