ISO 22734:2019
Hydrogen generators using water electrolysis — Industrial, commercial, and residential applications

Standard No.

ISO 22734:2019

Release Date

2019

Published By

International Organization for Standardization (ISO)

Latest

ISO 22734:2019

Scope

This document defines the construction, safety, and performance requirements of modular or factory- matched hydrogen gas generation appliances, herein referred to as hydrogen generators, using electrochemical reactions to electrolyse water to produce hydrogen. This document is applicable to hydrogen generators that use the following types of ion transport medium: — group of aqueous bases; — group of aqueous acids; — solid polymeric materials with acidic function group additions, such as acid proton exchange membrane (PEM); — solid polymeric materials with basic function group additions, such as anion exchange membrane (AEM). This document is applicable to hydrogen generators intended for industrial and commercial uses, and indoor and outdoor residential use in sheltered areas, such as car-ports, garages, utility rooms and similar areas of a residence. Hydrogen generators that can also be used to generate electricity, such as reversible fuel cells, are excluded from the scope of this document. Residential hydrogen generators that also supply oxygen as a product are excluded from the scope of this document.

ISO 22734:2019 Referenced Document

• IEC 31010:2019 Risk management — Risk assessment techniques
• IEC 60068-2-18:2017 Environmental testing - Part 2-18: Tests - Test R and guidance: Water
• IEC 60204-1:2016 Safety of machinery - Electrical equipment of machines - Part 1: General requirements
• IEC 60335-1:2010 Household and similar electrical appliances - Safety - Part 1: General requirements
• IEC 60445 Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors*， 2021-07-16 Update
• IEC 60529 Degrees of Protection Provided by Enclosures (IP Code) (Edition 2.1 ***Applies to French text only***)*， 2024-04-20 Update
• IEC 60730-1:2013 Automatic electrical controls - Part 1: General requirements
• IEC 60947-1 Corrigendum 1 — Low-voltage switchgear and controlgear — Part 1: General rules*， 2022-12-20 Update
• IEC 60950-1:2005 Information technology equipment - Safety - Part 1: General requirements
• IEC 60998-2-2 Connecting devices for low-voltage circuits for household and similar purposes - Part 2-2: Particular requirements for connecting devices as separate entities with screwless-type clamping units
• IEC 60999-1 Connecting devices - Electrical copper conductors - Safety requirements for screw-type and screwless-type clamping units - Part 1: General requirements and particular requirements for clamping units for conductors from 0,2 mm<(hoch)2> up to 35 mm<(hoch)2>
• IEC 60999-2 Connecting devices - Electrical copper conductors; Safety requirements for screw-type and screwless-type clamping units - Part 2: Particular requirements for clamping units for conductors from 35 mm<(hoch)2> up to 300 mm<(hoch)2> (included)
• IEC 61010-1:2010 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements
• IEC 61069-7 Mesure@ commande et automation dans les processus industriels – Appréciation des propriétés d'un système en vue de son évaluation – Partie 7: ?valuation de la sécurité d'un système (Edition 2.0)
• IEC 61131-1 Programmable controllers - Part 1: General information
• IEC 61131-2 Programmable controllers - Part 9: Single-drop digital communication interface for small sensors and actuators (SDCI)
• IEC 61508 Functional safety of electrical/electronic/programmable electronic safety-related systems – ALL PARTS together with a Commented version (see Functional Saf
• IEC 61511-1 Functional safety - Safety instrumented systems for the process industry sector - Part 1: Framework, definitions, system, hardware and application programming requirements*， 2024-04-20 Update
• IEC 61672-1 Electroacoustics - Sound level meters - Part 1: Specifications
• IEC 61672-2 Electroacoustics - Sound level meters - Part 2: Pattern evaluation tests*， 2024-04-20 Update
• ISO 10286 Gas cylinders — Vocabulary*， 2021-11-11 Update
• ISO 10790 Measurement of fluid flow in closed conduits - Guidance to the selection, installation and use of Coriolis flowmeters (mass flow, density and volume flow measurements)
• ISO 11119-1 Gas cylinders - Design, construction and testing of refillable composite gas cylinders and tubes - Part 1: Hoop wrapped fibre reinforced composite gas cylinders and tubes up to 450 l*， 2020-10-31 Update
• ISO 11119-2 Gas cylinders — Design, construction and testing of refillable composite gas cylinders and tubes — Part 2: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with load-sharin*， 2023-05-11 Update
• ISO 11119-3 Gas cylinders — Design, construction and testing of refillable composite gas cylinders and tubes — Part 3: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with non-load-sh*， 2023-07-11 Update
• ISO 1182 Reaction to fire tests for products — Non-combustibility test*， 2020-06-04 Update
• ISO 12100 Safety of machinery - General principles for design - Risk assessment and risk reduction
• ISO 12499 Industrial fans — Mechanical safety of fans — Guarding — Amendment 1
• ISO 13709 Centrifugal pumps for petroleum, petrochemical and natural gas industries
• ISO 13850 Safety of machinery - Emergency stop function - Principles for design
• ISO 13854 Safety of machinery - Minimum gaps to avoid crushing of parts of the human body
• ISO 13857 Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs*， 2019-10-10 Update
• ISO 14511 Measurement of fluid flow in closed conduits — Thermal mass flowmeters
• ISO 14847 Rotary positive displacement pumps - Technical requirements
• ISO 15534-1 Ergonomic design for the safety of machinery - Part 1: Principles for determining the dimensions required for openings for whole-body access into machinery
• ISO 15534-2 Ergonomic design for the safety of machinery - Part 2: Principles for determining the dimensions required for access openings
• ISO 15649 Petroleum and natural gas industries - Piping
• ISO 16111 Transportable gas storage devices - Hydrogen absorbed in reversible metal hydride
• ISO 16528-1 Boilers and pressure vessels - Part 1: Performance requirements
• ISO 17398 Safety colours and safety signs - Classification, performance and durability of safety signs
• ISO 26142 Hydrogen detection apparatus - Stationary applications
• ISO 3746 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane
• ISO 3864-2 Graphical symbols - Safety colours and safety signs - Part 2: Design principles for product safety labels
• ISO 4126-1 Safety devices for protection against excessive pressure — Part 1: Safety valves AMENDMENT 1
• ISO 4126-2 Safety devices for protection against excessive pressure — Part 2: Bursting disc safety devices
• ISO 4126-6 Safety devices for protection against excessive pressure - Part 6: Application, selection and installation of bursting disc safety devices
• ISO 7010 Graphical symbols*， 2024-04-01 Update
• ISO 7866 Gas cylinders — Seamless aluminum alloy gas cylinders intended for refilling — Design, construction and testing — Amendment 2
• ISO 9300 Measurement of gas flow by means of critical flow nozzles*， 2022-06-16 Update
• ISO 9614-1 Acoustics; determination of sound power levels of noise sources using sound intensity; part 1: measurement at discrete points
• ISO 9809-1 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 1: Quenched and tempered steel cylinders and tubes with tensile strength less than 1 100 MP
• ISO 9951 Measurement of gas flow in closed conduits - Turbine meters; Technical Corrigendum 1

ISO 22734:2019 history

• 2019 ISO 22734:2019 Hydrogen generators using water electrolysis — Industrial, commercial, and residential applications