ANSI/CSA HGV 4.8-2012 (R2023)

Description

Preface This publication represents a standard for safe operation, substantial and durable construction and performance testing of the mechanical features of newly manufactured compressors for use in gaseous hydrogen vehicle fueling stations. This standard is based on engineering principles, research and the combined expertise of manufacturers, users, and others having specialized experience. Nothing in this standard is to be considered in any way as indicating a measure of quality beyond compliance with the provisions it contains. It is designed to allow compliance of products which may exceed that specified in the provisions herein. In its preparation, full recognition has been given to possibilities of improvement through ingenuity of design. This standard is subject to revision as further experience and investigation may show it is necessary and desirable. CSA does not assume or undertake to discharge any responsibility of the manufacturer or any other party. CSA shall not incur any obligation or liability for damages, including consequential damages, arising out of or in connection with the use, interpretation of or reliance upon this standard. Users of this American National Standard are advised that the devices/products/activities within its scope may be subject to regulation at the federal, state, or local levels. Users are strongly urged to investigate this possibility through appropriate channels. In the event of a conflict with this standard, the federal, state, or local regulations should be followed. Scope 1.1 This standard contains safety requirements for material, design, manufacture and testing of gaseous hydrogen compressor packages used in fueling station service. This standard applies to newly manufactured equipment designed primarily to provide compressed hydrogen for vehicle fueling stations. This standard does not apply to: a) Vehicle Fueling Appliances for HGV b) Compressor packages used for non-vehicular fuel applications (e.g. power generation units) c) Internal combustion engine driven compressor All references to pressure throughout this document are to be considered gauge pressures unless otherwise specified. If the value for measurement as given in this standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification. Test gas as specified in these requirements shall be: – hydrogen or helium for leak tests, – liquids (e.g., water or oil ) for hydrostatic strength tests, – hydrogen, helium, nitrogen, or dry air for all other tests.