Details test and examination criteria for connectors suitable for non-rigid connection of outdoor gas appliances not frequently moved after installation, or manufactured (mobile) homes to gas supply lines containing natural, manufactured, mixed and liquef

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Details test and examination criteria for vented room heaters, direct vent wall furnaces, vented wall furnaces, and gravity and fan type floor furnaces for use with natural, manufactured and mixed gases, liquefied petroleum gases and LP gas-air mixtures

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Scope Datails test and examination criteria for automatic gas shutoff valves and devices which operate when the temperature sensing element is at 210oF (99oC) or less.

定价： 683元 / 折扣价： 581 元

Scope Details test and examination criteria for gas food service equipment for use with natural,manufactured and mixes gases,propane,liquefied petroleum gases and LP gas-air mixtures. The standard provides coverage for ranges and unit broilers,baking a

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Scope: Details test and examination criteria for gas-fired low-intensity infrared and infrared radiant tube heaters, with inputs up to 400,000 Btu/hr per burner, for use with natural, manufactured, mixed and liquefied petroleum (propane) gases and may

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Scope Details test and examination for direct gas-fired industrial air heaters of the non-recirculating type,for use with nat.,mfd. and mixed gases,LP gases,and LP gas-air mixtures. A direct gas fired industrial air heater of the non-recirculating type

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1.1 Scope 1.1.1 These requirements apply to manually operated valves for high pressure natural gas. 1.1.2 These requirements do not apply to cylinder shut-off valves. 1.1.3 A valve that complies with the requirements for a Class A valve may b

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FM and television broadcast receivers are frequently potential sources of interference to other FM and television broadcast receivers as well as to receivers in other services. In the range of 300 kc to 25 Mc, this interference can arise from high-level receiver signals such as the IF and, in television receivers, the horizontal deflection system. This standard defines a method for obtaining a measure of the interference conducted by the power line from these various interference sources in the… read more frequency range of 300 kc to 25 Mc. It supersedes and replaces the following three standards: IRE Standards on Receivers: Methods of Measurement of Interference Output of Television Receivers in the Range of 300 to 10,000 kc, 1954 (54 IRE 17.S1), IRE Standards on Methods of Measurement of the Conducted Interference Output of Broadcast and Television Receivers in the Runge of 300 kc to 25 Mc, 1956 (56 IRE 27.S1), and 'Supplement to IRE Standards on Receivers: Methods of Measurement of Interference Output of Television Receivers in the Range of 300 to 10,000 kc, 1954 (54 IRE 17. SI) (58 IRE 27. SI). This standard describes standard input signals, the equipment set-up and measurement techniques. read less

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This standard prescribes methods for performing test specified in American National Standard General Requirements for Distribution, Power, and Regulating Transformers, C57.12.00-1973 (IEEE 462-1973) and in the separate transformer standards of the C57.12 Series of American National Standards.

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A discussion of the available standard phase shifters, the general principles of measurement techniques, and the basic measurement precautions is included in this Report along with a bibliography of pertinent literature. This is one of a series of such reports planned under a program being carried out by the IEEE.* The data in this Report have been assembled by a special subcommittee working in the field of microwave phase-shift measurements.

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Defines the frame format, including delimiters, addressing, routing information, and frame-check sequence (FCS), to allow operation on a single ring or on multiple rings connected by source routing or transparent bridges, and introduces medium access control (MAC) frames, timers, counters, and priority stacks (see Section 3); (2) Defines the MAC protocol. The finite-state machine and state tables are supplemented with a prose description of the algorithms (see Section 4); (3) Defines the… read more physical layer (PHY) functions of symbol encoding and decoding, symbol timing, and latency buffering (see Section 5); (4) Describes the services provided by the MAC to the station management (SMT) and the logical link control sublayer (LLC) and the services provided by the PHY to SMT and the MAC. These services are defined in terms of service primitives and associated parameters (see Section 6); (5) Defines the 4 and 16 Mh/s, shielded twisted pair attachment of the station to the medium including the definition of the medium interface connector (MIC) (see Section 7); (6) Includes the PICS proforma in compliance with the relevant requirements, and in accordance with the relevant guidance, given in ISO 9646-2 [7]1 (see Annex C). read less

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