BS PAS 4444:2020

This PAS gives guidance on the development and construction of hydrogen-fired gas appliances, which are either purpose-built to use hydrogen or are designed to be converted to use hydrogen.

The PAS covers the functional specification of the appliance, including specific advice on the demonstration of safety, including reasonably foreseeable conditions to stress the appliance in excess of that which it is likely to experience in normal service. It also covers the setting of limit (upper and lower) hydrogen supply pressures and limit voltages. It discusses the possible arrangement of fittings and devices acknowledging the application to hydrogenfired appliances.

Cross References:
BS EN 203-2-3:2014
BS EN 509:2000
BS EN 1860-1:2013+A1:2017
BS EN 15502-2-1:2012+A1:2016
BS EN 14438:2006
BS EN 13278:2013
BS EN 1749:2020
BS EN 30-1-2:2012
BS 7977-1:2009+A1:2013
BS EN 203-2-1:2014
BS EN 1266:2002
BS EN 89:2015
BS EN 203-1:2014
BS EN 437:2018
BS EN 30-1-1:2008+A3:2013
BS EN 203-2-2:2006
BS EN 613:2001
BS EN 26:2015
BS EN 15502-1:2012+A1:2015
BS EN 15502-2-2:2014
BS EN 14829:2007
BS ISO 14687
BS 5871-4
BS 5871-2
BS 5871-3
Gas Safety (Installation and Use) Regulations 1998
BS 5871-1
BS EN 30-1-4:2012
BS EN 13611:2019
BS EN 416:2019
BS EN 676:2003+A2:2008
BS EN 303-3:1999
BS EN 60335-1:2012+A13:2017
BS EN 298:2012
BS EN 419:2019
BS EN 303-7:2006
BS EN 30-2-2:1999
BS 6798:2014
BS EN 303-1:2017
BS EN 30-2-1:2015
BS EN 17082:2019


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