ANSI/CSA HGV 4.2-2013 (R2019)

ANSI/CSA HGV 4.2-2013 - Hoses for compressed hydrogen fuel stations, dispensers and vehicle fuel systems

Preface This publication represents a standard for safe operation, substantial and durable construction and performance testing of gaseous hydrogen hose and hose assemblies which are used as a part of the dispensing station to connect the dispenser to the refueling nozzle; used as part of a vehicle on-board fuel system; or used as vent lines which carry gas to a safe location for either vehicles or dispensing systems. Scope 1.1.1 This standard contains safety requirements for material, design, manufacture and testing of gaseous hydrogen hose and hose assemblies. This standard applies to newly manufactured hose and hose assemblies for: - connecting the dispenser to the fueling nozzle, high pressure (class A) - used as part of a vehicle on-board fuel storage system, high pressure (class B) - used as part of a vehicle low pressure fuel delivery system, (class C) - flexible hoses used on hydrogen fuel station equipment (class D ) Note: Class D hoses include all station side hydrogen hoses where flexibility is necessary and acceptable to the certification agency The requirements of this standard may be superseded by an application specific standard. 1.1.2 All dimensions used in this standard are in metric units [International System of Units (SI)], unless otherwise specified. If a value for a measurement, as given in this standard, is followed by an equivalent value in other units, the first stated is to be regarded as the specification. 1.1.3 All references to pressure throughout this document are to be considered gauge pressures unless otherwise specified. 1.1.4 For clarification of which clause applies to which type of flexible hose see Appendix A, Applications Summary (Hose/Assembly). 1.1.5 Exhibit A contains a list of standards specifically referenced in this standard, and sources from which these reference standards may be obtained.

CSA America, Inc. [csa]

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