توضیحات :
NFPA 8501 – Standard for Single Burner Boiler Operation
۱۹۹۷ Edition
Chapter 1 Introduction
۱-۱ Scope.
۱-۱-۱ This standard applies to boilers with a fuel input rating of 12,500,000 Btu/hr (3663 kW) or greater. This standard applies only to boilers using single burners that fire the following fuels:
(a) Natural gas as defined in Chapter 3
(b) Other gas having a Btu value and characteristics that are similar to natural gas
(c) Fuel oil of No. 2, 4, 5, or 6 grade
(d) Gas and oil that are fired simultaneously for fuel transfer
(e) Gas and oil that are fired simultaneously and continuously
۱-۱-۲* This standard is not retroactive. This standard is applicable to new installations and to major alterations or extensions of existing equipment for the preparation and burning of fuel that are contracted for use subsequent to the date of this standard.
۱-۱-۳ Furnaces, such as those of process heaters that are used in chemical and petroleum manufacture wherein steam generation is incidental to the operation of a processing system, are not covered by this standard.
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