BS 6891:2015

BS 6891:2015 specifies the design, installation, commissioning and maintenance of gas installation pipework carrying 2nd and 3rd family gas of up to 35 mm (R 1¼) on premises, including residential park homes (2nd and 3rd family gas) and caravan holiday homes (2nd family gas) (see Table 1 and examples in Figure 1 to Figure 3; see also Figure 4). NOTE 1 The principles of the standard can also be applied to the design, installation, commissioning and maintenance of gas installation pipework carrying 1st family gas.

NOTE 2 Annex A gives a method for calculating pipe sizes. Annex B discusses the sulfidation of natural gas installations, while Annex C summarizes the conclusions of a report on gas in intermediate floors. Guidance on determining whether an area can be deemed a "protected area" is given in Annex D. Requirements for LPG final stage regulator and safety devices are specified in Annex E. Annex F discusses the need for gas pipework design and installation for commercial installations to satisfy regulatory requirements regarding explosive atmospheres.

This British Standard is not applicable to:

• service pipework and distribution systems;
• pipework contained within an appliance;
• bulk storage vessels;
• LPG pipework installed in leisure accommodation vehicles and for accommodation purposes in vehicles in accordance with BS EN 1949;
• boats, yachts and other vessels;
• gas pipework supplying or within appliances having their own gas supply, such as mobile heaters; or
• gas pipework supplying or within catering establishments covered by BS 6173.

Cross References:
BS 21
BS 143 and 1256
BS 669-1
BS 669-2
BS 864-2
BS 1552
BS 3016
BS 3212
BS 4371
BS 5114
BS 6172
BS 6362
BS 6400-1
BS 6400-2
BS 6400-3
BS 6501-1
BS 6956
BS 7624
BS 7671
BS 7838
BS 8537
BS EN 331
BS EN 751-1
BS EN 751-2
BS EN 751-3
BS EN 1057
BS EN 1254-1
BS EN 1254-2
BS EN 1254-4
BS EN 1254-5
BS EN 1555-1
BS EN 1555-2
BS EN 1555-3
BS EN 1775:2007
BS EN 10216-1
BS EN 10216-2
BS EN 10216-5
BS EN 10217-1
BS EN 10217-2
BS EN 10217-7
BS EN 10226-1
BS EN 10241
BS EN 10242
BS EN 10255
BS EN 10312
BS EN 12864
BS EN 13349
BS EN 13785
BS EN 13786
BS EN 15069
BS EN 15266
BS EN 16129
BS EN 16436-1
BS EN ISO 228-1
BS EN ISO 10380
ISO 7-1
BS 476
BS 1494-1
BS 1710:1984
BS 3632
BS 4250
BS 5482-1:2005
BS 5482-2
BS 6004
BS 6007
BS 6173
BS 6231
BS 7967
BS 8313
BS EN 437
BS EN 1044
BS EN 1763-1
BS EN 1949:2011+A1:2013
BS EN 14324
BS EN 29453
BS EN 60079-10
BS EN ISO 10239
PD 5482-3
Gas Safety (Installation and Use) Regulations 1998
Gas Safety (Installation and Use) Regulations
(Northern Ireland) 2004
Gas Safety (Installation and Use) Regulations 1994
Health and Safety (Gas) (Guernsey) Ordinance 2006
Building Regulations 2010 (England and Wales)
Building Regulations (Northern Ireland) 2012
Building (Scotland) Regulations 2004
Gas Safety (Management) Regulations 1996
Gas Safety (Management) Regulations (Northern Ireland)
1997
IGEM/GM/6:2011
IGE/GM/8:2005
IGEM/UP/2:2008
Road Vehicles (Construction and Use) Regulations 1986
Caravan Sites and Control of Development Act 1960
Caravans Sites Act 1968
IGEM/IG/1:2014
Dangerous Substances and Explosive Atmospheres
Regulations 2002
Dangerous Substances and Explosive Atmospheres
(Northern Ireland) R


Partially replaces BS 5482-1:2005 which remains current

All current amendments available at time of purchase are included with the purchase of this document.