PAS 4443:2024 PDF

You can download a DRM-free copy of this standard here . What is PAS 4443:2024 about? PAS 4443:2024 forms part of the Hydrogen Skills and Standards for Heat programme , aiming to enable the existing natural gas system to be repurposed for use with 100% hydrogen downstream of the emergency control valve (ECV). Sponsored by the Department for Energy Security and Net Zero (DESNZ), PAS 4443:2024 is part of a suite of standards that define the required criteria to safely design and install new hydrogen-safe pipework and appliances. It helps with contributing evidence informing strategic decisions in 2026 on the role of hydrogen in heat decarbonization. What does PAS 4443:2024 cover? The standard specifies the requirements for ancillary valves, devices and components used in hydrogen gas installations , supplied with hydrogen 4th family gas. It covers requirements for ancillary components downstream of the emergency control valve (ECV) . It also addresses test and measuring equipme...