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1.1 Scope 1.1.1 This standard applies to newly produced, large automatic storage water heaters having input ratings above 75,000 Btu per hour (21 980 W), instantaneous water heaters, circulating water heaters, including booster water heaters (see Part

定价: 6780元 / 折扣价: 5763

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Addenda to American National Standards Z21.12-1990 and Z21.12a-1993 for Draft Hoods. Approved February 14, 1994 by American National Standards Institute, Inc. NOTE: Changes, other than editorial, are denoted by a vertical line in the margin.

定价: 728元 / 折扣价: 619

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定价: 5551元 / 折扣价: 4719

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ANSI Z21.18-07/CSA 6.3-07 Gas Appliance Pressure Regulators 现行 发布日期 :  实施日期 : 

定价: 3731元 / 折扣价: 3172

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Scope Details test and examination criteria for gas appliance pressure regulators for use with natural, manufactured and mixed gases, liquefied petroleum gases and LP gas-air mixtures. Such devices, either individual or in combination with other contr

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定价: 592元 / 折扣价: 504

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ANSI Z21.24-2001/CSA 6.10-2001 Connectors for Gas Appliances 现行 发布日期 :  实施日期 : 

Scope Details test and examination criteria for gas appliance connectors comprised of semi-rigid metal tubing and having a fitting at each end provided with taper pipe threads for connection to a gas appliance and to house piping, o consisting of corru

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定价: 546元 / 折扣价: 465

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定价: 546元 / 折扣价: 465

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ANSI Z21.47-2006/CSA 2.3-2006 Gas-Fired Central Furnaces 现行 发布日期 :  实施日期 : 

定价: 9146元 / 折扣价: 7775

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Scope Details test and examination criteria for automatically operating gas-fired central furnaces for use with nat., mfd. and mixed gases, LP gases and LP gas air mixtures. Central furnaces are designed to supply heated air through ducts to building s

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1.1 Scope 1.1.1 This standard applies to newly produced Type 1 clothes dryers (see Part IV, Definitions), hereinafter referred to as dryers, constructed entirely of new, unused parts and materials: a.For use with natural gas; b.For use with manufactu

定价: 4823元 / 折扣价: 4100

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定价: 728元 / 折扣价: 619

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Scope Details test and examination criteria for vented gas fireplace for use with natural and propane gases. The only function of a vented gas fireplace lies in the aesthetic effect of the flame; the appliance is not a source of heat.

定价: 637元 / 折扣价: 542

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