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NS EN 303-1 : 2017
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The latest, up-to-date edition.
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HEATING BOILERS - PART 1: HEATING BOILERS WITH FORCED DRAUGHT BURNERS - TERMINOLOGY, GENERAL REQUIREMENTS, TESTING AND MARKING
12-01-2013
Applies to standard boilers and low-temperature boilers with forced draught burners with a nominal heat output not exceeding 1000 kW, which are operated either with negative pressure (natural draught boilers) or with positive pressure (pressurized boiler).
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