Establishes nominal voltage ratings and operating tolerances for 60-hertz electric power systems above 100 volts. It includes preferred voltage ratings up to and including 1200 kV maximum system voltage.
The purpose of this
standard is to provide guidelines for the
development of emergency procedures for
construction sites.
welding, flux cored stainless steel rods for root pass welding with the gas tungsten arc process, and metal cored stainless
steel electrodes for gas metal arc welding, gas tungsten arc welding, plasma arc welding, submerged arc welding, and
any other process to which they may be applied.
The chromium content of undiluted weld metal from these electrodes and rods is not less than 10.5% nominal and the
iron content exceeds that of any other element. For purposes of classification, the iron content shall be derived as the balance
element when all other elements are considered to be set at their specified minimum values.
Safety and health issues are beyond the scope of this standard and, therefore, are not fully addressed herein. Some safety
and health information can be found in Annex Clauses A5 and A10. Safety and health information is available from
other sources, including, but not limited to, ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes, and applicable
state and federal regulations.
This specification uses both U.S. Customary Units and the International System of Units (SI). The measurements are not
exact equivalents; therefore, each system must be used independently of the other without combining in any way when
referring to material properties. The specification with the designation A5.22 uses U.S. Customary Units. The specification
A5.22M uses SI Units. The latter are shown within brackets ([ ]) or in appropriate columns in tables. Standard
dimensions based on either system may be used for sizing of filler metals or packaging or both under A5.22 or A5.22M
specifications.
This Standard covers ratings, dimensions, tolerances, marking and material requirements for socket-welding and threaded forged fittings. These fittings are designated as Class 2000, 3000, and 6000 for threaded end fittings and Class 3000, 6000, and 9000 for socket-weld end fittings.
B16.11 is to be used in conjunction with equipment described in other volumes of the ASME B16 series of standards as well as with other ASME standards, such as the Boiler and Pressure Vessel Code and the B31 Piping Codes.
Careful application of these B16 standards will help users to comply with applicable regulations within their jurisdictions, while achieving the operational, cost and safety benefits to be gained from the many industry best-practices detailed within these volumes.
Intended for manufacturers, owners, employers, users and others concerned with the specification, buying, maintenance, training and safe use of wrought and forged fittings with pressure equipment, plus all potential governing entities.
The purpose of this Standard is to establish the test and performance requirements of a roll-over
protective structure, ROPS, designed for compact utility tractors to minimize the frequency and severity of
crushing injury to the operator resulting from accidental tractor upset.
This Standard is a summary of nomenclature and terminology currently used to define and/or describe mechanical fasteners, related characteristics, and the manufacturing processes that produce these products. Utilization of these terms by manufacturers and consumers is intended to reduce or eliminate confusion and serve as a sound basis for communication.
(a) Primary Operations. Mechanical fasteners are produced by forming or screw machine operations. Forming is generally scrapless and, depending upon size, may produce fasteners at rates exceeding 500 pieces per minute. Screw machining, although more tightly toleranced, is significantly slower and generates scrap because it involves the removal of material.
(b) Secondary Operations. Fasteners generally undergo several secondary operations or processes such as thread rolling, heat treating, or plating.
(c) Fastener. A fastener is a mechanical device designed specifically to hold, join, couple, assemble, or maintain equilibrium of single or multiple components. The resulting assembly may function dynamically or statically as a primary or secondary component of a mechanism or structure. Based on the intended application, a fastener is produced with varying degrees of built in precision and engineering capability, ensuring adequate, sound service under planned, preestablished environmental conditions.
(d) Bolts, Studs, Screws, Nuts, Washers, Rivets, Pins, and Custom Formed Parts. These items are the general product families in which mechanical fasteners are best classified. Within each product family are numerous types that may have a name conforming to the technical language of a national standard or alternately may have a name that has its origins in commercial or marketing nomenclature often taken from its intended application. Such names, for example, include the "stove bolt" and "carriage bolt."
Because mechanical fasteners are used in just about every mechanical assembly, they necessarily have been designed to meet a broad range of applications from watch and computer assembly to space shuttle design. The names given to fasteners appear to be as limitless as the designer's imagination. While many fasteners may look alike, they generally have defined engineered capabilities based upon their intended application.
ASME has been defining crane safety since 1916.
BTH-1 provides minimum structural and mechanical design and electrical component selection criteria for ASME B30.20 below-the-hook lifting devices. The provisions in this Standard apply to the design or modification of below-the-hook lifting devices. Compliance with requirements and criteria that may be unique to specialized industries and environments is outside of the scope of this Standard. Lifting devices designed to this Standard shall comply with ASME B30.20, Below-the-Hook Lifting Devices. ASME B30.20 includes provisions that apply to the marking, construction, installation, inspection, testing, maintenance, and operation of below-the-hook lifting devices.
ASME BTH-1 addresses only design requirements. As such, this Standard should be used in conjunction with ASME B30.20, which addresses safety requirements. ASME BTH-1 does not replace ASME B30.20. The design criteria set forth are minimum requirements that may be increased at the discretion of the lifting device manufacturer or a qualified person.
ASME BTH-1 and ASME B30.20 are to be used in conjunction with equipment described in other volumes of the ASME B30 series of safety standards.
Careful application of these B30 standards will help users to comply with pertinent regulations within their jurisdictions, while achieving the operational and safety benefits to be gained from the many industry best-practices detailed in these volumes.
Intended for manufacturers, owners, employers, users and others concerned with the specification, buying, maintenance, training and safe use of below-the-hook lifting devices with B30 equipment, plus all potential governing entities.
Keywords:
J17511
1.1 This Standard establishes requirements for the performance and installation of gasketing systems
including intumescents applied to, or mortised to doors, frames or both. Included are performance tests
intended to provide installation guidelines, resistance to smoke and air infiltration, and measure the life
and durability of gasketing materials.
1.2 Requirements apply to factory or field installed materials.
1.3 Tests described in this Standard are performed under laboratory conditions. In actual usage,
results vary because of installation, maintenance and environmental conditions.
This item is available as part of a discounted standards set covering Trimming of Doors .
This standard lists requirements for qualification and characterization of solder paste. It references test methods and criteria for metal content, viscosity, slump, solder ball, tack and wetting of solder pastes.
