Thermal efficiency requirements and associated methods of tests for boilers and for circulators of rated heat input up to and including 60 kW and 8kW respectively burning 1st, 2nd and 3rd family gases.
BS 6332-1:1983
Original price was: $264.16.$132.00Current price is: $132.00.
Thermal performance of domestic gas appliances.-Specification for thermal performance of central heating boilers and circulators
BSI Group , 10/31/1985
