ISO 22734
Hydrogen generators using water electrolysis - Industrial, commercial, and residential applications
Wasserstofferzeuger auf der Grundlage der Elektrolyse von Wasser - Industrielle, gewerbliche und häusliche Anwendungen
Brief description
This standard defines the construction, safety, and performance requirements od hydrogen gas generation appliances, using electrochemical reactions to electrolyse water to produce hydrogen, of the following types : 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). In a hydrogen generator electrochemical cell, electricity causes dissociation of water into hydrogen and oxygen molecules. An electric current is passed between two electrodes separated by a conductive electrolyte or “ion transport medium”, producing hydrogen at the negative electrode (cathode) and oxygen at the positive electrode (anode). As water is H2O, twice the volume of hydrogen is produced compared with oxygen.Hydrogen gas produced using electrolysis technology can be utilized immediately or stored for later use.The cell(s), and electrical, gas processing, ventilation, cooling, monitoring equipment and controls are contained within an enclosure. Gas compression, feed water conditioning, and auxiliary equipment may also be included.This document is intended to be used for certification purposes
