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BS 5991:1989

Заменен
Specification for indirect gas fired forced convection air heaters with rated heat inputs up to 2 MW for industrial and commercial space heating: safety and performance requirements (excluding electrical requirements (2nd family gases) — 40 стр.
BS 5991:1983
Заменен
BS 3561:1962
Заменен
BS 5991:1989
Заменен
BS 5991:2006
Действует