Specification for the installation and maintenance of low pressure gas installation pipework of up to 35 mm (R1¹₄) on premisesWhat is this BS 6891 Gas installation pipework about? BS 6891 discusses low pressure gas installation pipework installation on user premises. BS 6891 specifies the design, installation, commissioning, and maintenance of gas installation pipework carrying 2nd and 3rd family gas of up to 35 mm (R 1) on premises, including residential park homes (2nd and 3rd family gas) and caravan holiday homes (2nd family gas). Note: BS 6891 is not applicable to:

ISO 14414 is focused on assessing electrically driven pumping systems

BS EN 61000-3-3 is concerned with the limitation of voltage fluctuations and flicker impressed on the public low-voltage system

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brazing process and process variables

BS EN IEC 62402:2019 has been written as a general process for all technologies and items

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ISO/TR 21946 provides:

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16 The audit report and statement of findings

It does not represent an authorization to operate

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