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A17.5/B44.1 - Elevator and Escalator Electrical Equipment

The requirements of this Standard apply to the following electrical equipment for elevators, escalators, moving walks, dumbwaiters, material lifts, and elevating devices for persons with physical disabilities (platform lifts and stairway chairlifts): (a) motor controllers; (b) motion controllers; (c) operation controllers; (d) operating devices; and (e) all other electrical equipment not listed/certified and labelled/marked according to another product safety standard or code.

 

B107.28M - Electronic Torque Instruments

This Standard is intended to cover the general, dimensional, and functional characteristics for manually operated electronic torque instruments used for control of the tightness of threaded fasteners. It also covers requirements for endurance, torque value ranges, and accuracy for these torque instruments. It is not intended to describe products infrequently utilized or those designed for special purposes.

 

B107.29M - Electronic Tester, Hand Torque Tools

This Standard covers electronic torque testers used for checking manually operated hand held torque wrenches and torque screwdrivers. cutting wood and light prying, such as cutting the tongue of installed flooring sections and raising and removing floor planks.

 

B107.38M - Electronic Pliers

This Standard covers the dimensional and functional characteristics of electronic pliers suitable for gripping, holding, and/or manipulating small objects. Some pliers may also have cutting edges suitable for cutting small diameter wire. Inclusion of dimensional and functional data in this Standard is not intended to imply that all of the products described herein are stock production sizes. Consumers should consult with manufacturers concerning a list of stock production sizes.

 

B107.22M - Electronic Cutters and Pliers

This Standard is intended to cover the general dimensional and functional characteristics of electronic pliers having cutting edges diagonal to the plier longitudinal axis and pliers having cutting edges at right angles to the plier longitudinal axis. This Standard is intended to also cover the general dimensional and functional characteristics of electronic long nose pliers. manufacturers concerning a list of stock production sizes.

 

A112.19.13 - Electrohydraulic Water Closets

This Standard establishes performance, electrical/electronic conformance, temperature, life cycle, marking, and identification requirements for electrohydraulic water closets. The use of alternate materials or methods are permitted, provided the proposed material or method complies with the performance requirements and intent of this Standard.

 

PTC 24 - Ejectors

The Code provides standard directions and rules for the conducting and reporting of tests on single or multi-stage ejector units. The primary object of the test measurements described herein is to establish: (a) Ejector capacity in relation to suction pressure (b) Discharge pressure in relation to suction pressure (c) The flow rate of the motive fluid in relation to a stipulated pressure and temperature (d) The ejector stability; i.e. the relation of motive fluid pressure or the discharge pressure to breakdown and recovery of the pumping action The Code rules and procedures are intended primarily for the test of ejectors in which the motive fluid is steam. They may be used, however, with any motive fluid for which the physical properties are completely and reliably known. See Section 3, Par.3.01. The instructions and capacity measurements provide for tests where the suction fluid pumped is air, water vapor, or other gases for which the physical and thermodynamic properties are known. A procedure is provided for tests on gas mixtures in which the components can be separately measured and controlled. If the motive fluid is steam or other condensable vapor, it shall be dry (without any moisture). The Code does not cover two-phase fluids. exhaust steam pressure control, including reheat turbines. (b) Straight condensing, straight noncondensing and regenerative turbines with initial and/or exhaust steam pressure control, including reheat turbines. (c) Automatic extraction and mixed-pressure turbines, in conjunction with PTC 20.3, Pressure Control Systems Used on Steam Turbine-Generator Units.

 

B16.42 - Ductile Iron Pipe Flanges and Flanged Fittings: Classes 150 and 300

This Standard covers minimum requirements for Class 150 and 300 cast ductile iron pipe flanges and flanged fittings. The requirements covered are as follows: (a) pressure-temperature ratings (b) sizes and method of designating openings (c) marking (d) materials (e) dimensions and tolerances (f) blots, nuts, and gaskets (g) tests

 

A112.19.10 - Dual Flush Devices for Water Closets

This Standard covers physical and performance requirements and test methods pertaining to dual flush devices that are installed within water closet tanks which use 3.5 gpf (13.2 Lpf) or greater volume, to reduce total volumetric water consumption.

 

B1.20.3 - Dryseal Pipe Threads,Inch

Dryseal pipe threads are based on the USA (American) pipe thread, however, they differ from the USA (American) pipe thread in that they are designed to seal pressure-tight joints without the necessity of using sealing compounds. To accomplish this some modification of thread from and greater accuracy in manufacture is required. The roots of both the external and internal threads are truncated slightly more than the crests, i.e. roots have wider flats than crest, so that metal-to-metal contact occurs at the crests and roots coincident with or prior to flank contact, see Figure 1. Thus as the threads are assembled by wrenching, the roots of the threads crush the sharper crests of the mating threads.

 

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