This Standardcovers Classes 25, 125, and250 GrayIron Pipe Flanges and Flanged Fittings. It includes (a) pressure–temperature ratings (b) sizes and method ofdesignatingopenings ofreduc-ing fittings (c) marking (d) materials (e) dimensions and tolerances (f) bolting and gaskets (g) pressure testing
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(a) This Standard notes technical factors that can explain measurement differences between two parties calibrating the same gage. It is directed to the metrology involved, not acceptance rules or other quality considerations. (b) While measurement uncertainty applies to the cali-bration of gages to any standard, this Standard focuses on gages made to ASME standards only.
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This Standard specifies the thread form, series, class,allowance, tolerance, and designation for unified screw threads. (In order to emphasize that unified screw threads are based on inch modules, they may be denoted unified inch screw threads.) Several variations in thread form have been developed for unified threads; however, this Standard covers only UN, UNR,and UNJ
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(a) This Standard includes both performance-based and prescriptive requirements to be used for an ASME Nondestructive Examination (NDE) and Quality Control (QC) Central Qualification and Certification Program that applies to NDE personnel and QC inspection person-nel. (b) This Standard includes requirements for personnel education,training,experience,writtenexaminations,and practical demonstrations. The requirements are based on a systematic approach to
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This Standard covers anti-siphon fill valves intended to be installed in water closet tanks. Note: In this Standard, anti-siphon fill valves are also referred to as “devices”.
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This Standard specifies general requirements, test methods, and markings for whirlpool and air-jetted bathtubs and suction fittings used in hydromassage bathtub systems that incorporate a bathtub and circulation pump. The circulation pump can be with or without a) a piping system; and b) induction of air (which can be achieved by integral suction or through
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This Standard establishes minimum requirements for materials in the construction of a sanitary waste valve (here-inafter referred to as “the valve”) for use as an alternate to a tubular p-trap. This Standard prescribes minimum test requirements for the performance ofthe valve together with methods ofmarking and identification. This Standard doesm not define the requirements for
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This Standard covers plumbing waste fittings of sizes NPS-2 and smaller.
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Equipment Covered byThis Standard. This safety Standard covers the design, construction, installation,operation, inspection, testing, maintenance, and repair of inclined stairway chairlifts and inclined and vertical platform lifts intended for transportation of a mobility-impaired person only. The device shall have a limited vertical travel, operating speed, and platform area. Opera-tion shall be under continuous control of
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The requirements of this Standard apply to the ollowing electrical equipment for elevators, escalators,moving walks, dumbwaiters, material lits, 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
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