CSA ANSI Z21.103-2017 pdf free download – Unvented portable type gas camp heaters for indoor and outdoor use.
Combustion – as used in this Standard, the rapid oxidation of fuel gases accompanied by theproduction of heat or heat and light.
Combustion products – constituents resulting from the combustion of a fuel gas with the oxygen ofthe air, including the inerts by excluding excess air.
Controls – devices designed to regulate the gas, air, water, or electrical supplies to a gas appliance,which may be manual,semi-automatic, or automatic.
cubic foot of gas – the amount of gas that would occupy 1 ft3 at a temperature of 60°F, if saturatedwith water vapor and under a pressure equivalent to that of 30 inches of mercury.
Cylinder, fuel – as used in this standard, a container complying with the Department of Transportationspecifications for containers used for the transportation and storage of liquid and/or vapor fuels.
Discharge air openings — an opening or a series of openings in the same plane separated by less than 1inch of unbroken surface between openings through which heated air (excluding flue products) is
discharged.For any opening through which ambient air is drawn in and discharged at a higher temperature through the same opening, the entire opening is to be deemed the discharge air opening.Equilibrium — for the purpose of the combustion test specified in Clause 5.4, Combustion, equilibriumis considered to be reached after the following conditions are met:
a) the heater is operated for a minimum of 8 hours when tested at 0.5 air change per hour, a minimum of 4 hours when tested at 1.0 air change per hour, and a minimum of 2 hours and 40minutes when tested at 1.5 air changes per hour; and
b) samples of the room air, withdrawn at a minimum of three consecutive 1% hour intervals after the
minimum operating time for the specific test condition and analyzed for carbon monoxide in partsper million and for oxygen in percent by volume, do not indicate an increase of more than one partper million for carbon monoxide and a decrease of 0.16 percent by volume for oxygen betweeneach consecutive reading.
Excess air 一 air that passes through the combustion chamber and the appliance flues in excess of thatwhich is theoretically required for complete combustion.
Extinguishment – for the purpose of the combustion test specified in Clause 5.4, Combustion,
extinguishment is considered to be reached when combustion of the gas supplied to the heater ceasesto occur at the burner ports,within the burner body, within the burner venturi, and on the face of theburner orifice.
Flue gases — products of combustion and excess air.
Heating value (total) – the number of British Thermal Units produced by the combustion at constantpressure of 1 cubic foot of gas, when the products of combustion are cooled to the initial temperatureof the gas and air, when the water vapor formed during combustion is condensed, and when all thenecessary corrections have been applied.
Hydrocarbon – those compounds composed of carbon and hydrogen that form the primaryconstituents of various fuel gases.
Hydrocarbon, unreacted (unburned fuel gas)- that portion of the hydrocarbon fuel gases passingthrough a catalytic pad that do not react with oxygen during the combustion process.CSA ANSI Z21.103 pdf download.