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BS 6644:2005+A1:2008

Заменен
Specification for installation of gas-fired hot water boilers of rated inputs of between 70kW (net) and 1.8 MW (net) (2nd and 3rd family gases) — 52 стр.
BS 6644:1991
Заменен
BS 6644:1990
Заменен
BS 6644:1986
Заменен
CP 332-3:1970
Заменен
BS 6644:2005+A1:2008
Заменен
BS 6644:2011
Действует