Foreword

This PAS was sponsored by the Department for Business, Energy and Industrial Strategy (BEIS). Its development was facilitated by BSI Standards Limited and it was published under licence from The British Standards Institution. It came into effect on 30 April 2020.

Acknowledgement is given to Bob Walsh of Sarem Consulting, as the technical author, and the following organizations that were involved in the development of this PAS as members of the steering group:

• Association of British Certification Bodies (ABCB)
• Baxi UK
• Bosch
• Building Services Research and Information Association (BSRIA)
• Consumer & Public Interest Network (CPIN)
• Department for Business, Energy and Industrial Strategy (BEIS)
• Enertek International Ltd
• Foodservice Equipment Association (FEA)
• Focalpoint Fires plc
• Gazco Ltd
• Heating and Hotwater Industry Council (HHIC)
• Hy4Heat
• Institution of Gas Engineers & Managers (IGEM)
• Intertek Group plc
• KIWA
• Ove Arup & Partners Ltd
• University of Leeds
• Viessmann Group

Acknowledgement is also given to the members of a wider review panel who were consulted in the development of this PAS.

The British Standards Institution retains ownership and copyright of this PAS. BSI Standards Limited as the publisher of the PAS reserves the right to withdraw or amend this PAS on receipt of authoritative advice that it is appropriate to do so. This PAS will be reviewed at intervals not exceeding two years, and any amendments arising from the review will be published as an amended PAS and publicized in Update Standards.

This PAS is not to be regarded as a British Standard. It will be withdrawn upon publication of its content in, or as, a British Standard.

The PAS process enables a guide to be rapidly developed in order to fulfil an immediate need in industry. A PAS can be considered for further development as a British Standard, or constitute part of the UK input into the development of a European or International Standard.

Information about this document

As a guide, this PAS takes the form of guidance and recommendations. It should not be quoted as if it were a specification or a code of practice and claims of compliance cannot be made to it.

In order to gather live feedback on the PAS in its first six months of publication, BSI are also hosting the text of the PAS online, and invite you to comment on the PAS during this time period, in order to assess the usefulness of this PAS and inform any future revisions of it. In order to participate on this, please supply your name, contact details and email address to the email address provided on the inside back cover of this PAS. Once you have provided that information to that email address, BSI will then send you an automatic email that will provide you with the link to our Standards Development Portal where you can provide your comments on the PAS.

Presentational conventions

The guidance in this PAS is presented in Roman (i.e. upright) type. Any recommendations are expressed in sentences in which the principal auxiliary verb is “should”.

Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.

Identified issues generating subsequent requirements and supporting tests are detailed and referenced to the relevant appliance standard/clause.

Where words have alternative spellings, the preferred spelling of the Shorter Oxford English Dictionary is used (e.g. “organization” rather than “organisation”).

Guidance in this standard is drafted in accordance with Rules for the structure and drafting of UK standards, subclause G.4, which states, “The wording of a guide is in the form of descriptive statements and recommendations, using the present tense and the auxiliary “should” for recommendations”.

Contractual and legal considerations

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a PAS cannot confer immunity from legal obligations.

PAS 4444:2020

Hydrogen-fired gas appliances. Guide

Published:

30 Apr 2020

Withdrawn:

14 Dec 2021