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This PDF includes GI #2. 1. Scope 1.1 This Standard applies to motor-operated appliances intended for use on nominal system voltages of 600 V and less, except that where appliances are driven by universal-type motors or electromagnetic mechanisms

定价： 819元 / 折扣价： 697 元

1.1 Scope 1.1.1 These requirements apply to natural and propane gas-fired conversion burners designed and constructed primarily for the purpose of converting heating and process equipment from the use of other fuels to gas firing and/or firing new he

定价： 1138元 / 折扣价： 968 元

This PDF includes GI #2. 1. Scope 1.1 This Standard applies to motor operated food processing appliances intended for use on nominal system voltages of 600 V and less, except that where appliances are driven by universal type motors or electromagn

定价： 455元 / 折扣价： 387 元

This PDF includes Amendments #1-14. 1. Scope 1.1 These requirements apply to natural and propane gas-fired packaged boilers. 1.2 The requirements in Part (A) of this Standard apply to package boilers, fire and water tube, steam and hot water, h

定价： 1138元 / 折扣价： 968 元

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1. Scope This standard applies to package furnaces. For the purpose of this standard, a package furnace is a gas-fired, warm-air furnace wi th an input rate exceeding 400,000 Btu per hour (117.2 kW) for installation in commercial or industrial structur

定价： 1365元 / 折扣价： 1161 元

1. SCOPE 1.1 This Standard applies to tubular rigid metallic support members and associated fittings intended for the support and connection of supply service wires for installations operating at potentials of 750 volts or less in accord?ance with the ru

定价： 501元 / 折扣价： 426 元

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定价： 2048元 / 折扣价： 1741 元

1. Scope 1.1 This Standard describes a procedure for the measurement of A-weighted sound levels in and around industrial, institutional, or commercial sites. 1.2 This Standard applies to the measurement of sounds that are essentially non-impulsive

定价： 319元 / 折扣价： 272 元