ASTM E1998评定减压诱导的通风燃气用具回流和溢出的标准指南
日期:2012-02-08 10:23
epressurization or natural conditions.
1.3 Residential vented combustion appliances addressed in this guide include hot water heaters and furnace. The guide also is applicable to boilers.
1.4 The methods given in this guide are applicable to Category I (draft-hood- and induced-fan-equipped) furnaces. The guide does not apply to Category III (power-vent-equipped) or Category IV (direct-vent) furnaces.
1.5 The methods in this guide are not intended to identify backdrafting or spillage due to vent
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