Standards News

The all-new Division 5 of Section III of the ASME Boiler and Pressure Vessel Code (BPVC) provides construction rules for high-temperature reactors, including both high-temperature, gas-cooled reactors (HTGRs) and liquid-metal reactors (LMRs). These rules are for components exceeding the temperature in Division 1 and are meant for components experiencing temperatures that are equal, to or higher than, 700°F (370°C) for ferritic materials or 800°F (425°C) for austenitic stainless steels or high nickel alloys.

Importantly, Division 5 also contains the new rules pertaining to graphite core components. These new rules include general requirements, plus design and construction rules, for graphite. Irradiation effects on graphite are addressed, as are the features of probabilistic design reflected in the determination of graphite material strength properties.

This first edition reflects new, safety-criteria approaches for nuclear power plants-accumulating rules conveniently into one, single book format. These rules have been updated and improved over those still in Code Case format.

Various industries are beginning to appreciate the unique advantages that exist with nuclear power plants that operate at elevated temperatures. For example, HTGRs can yield higher operating efficiencies, provide not only electrical power but also process heat for other industries, and can be designed to be passively-safe.

Intended for those nuclear facilities and power plants that experience operating temperatures that exceed the limits established in Section III, Division 1. At this time, both high temperature gas-cooled reactors and liquid metal reactors are identified as being within the scope of these Division 5 rules.

Keywords:
X00035

The ASME A18.1 Safety Standard for Platform Lifts and Stairway Chairlifts presents certain guides for the design, construction, installation, operation, inspection, testing, maintenance, and repair of inclined stairway chairlifts, and inclined and vertical platform lifts. It covers devices intended for transportation of a mobility-impaired person only ? typically for applications within buildings and residences.

The ultimate goal of this Standard is to help protect public safety, while reflecting best-practices of industry.

A18.1 offers essential guidance for safety to both public and private sectors:

• For public sectors, it serves as the basis for state, municipal, and other jurisdictional authorities in drafting regulations governing the installation, testing, inspection, maintenance, alteration, and repair of stairway chairlifts and platform lifts.
• For private sectors, A18.1 provides a standard reference of safety requirements for architects, engineers, insurance companies, manufacturers, and contractors, while delivering safety practices for owners and managers of structures where equipment covered in the Scope of this Standard is used.

Keywords:
0791831450

pipe flanges and blind pipe flanges having rating class
designations 150, 300, 600, 900, 1500, and 2500. This
Standard also covers flanged fittings having rating class
designations 150 and 300. It establishes requirements for

(a) pressure?temperature ratings

(b) size and method of designating openings for
reduced fittings

(c) markings

(d) materials

(e) dimensions

(f) bolting and gaskets

(g) tolerances

(h) tests

This Standard also provides dimensional requirements
for flanged ends of valves conforming to MSS SP-80.

Keywords:
piping system

This Standard for gray iron threaded fittings, Classes 125 and 250 covers: (a) pressure-temperature ratings (b) size and method of designating openings of reducing fittings (c) marking (d) material (e) dimensions and tolerances (f) threading, and (g) coatings.

This Standard presents the design practices for dimensioning and tolerancing of gages and fixtures used for the verification of maximum material condition (MMC) size envelopes and virtual condition boundaries generated by geometric tolerances controlled at maximum material condition. Examples of gages used to inspect workpieces using regardless of feature size (RFS) are shown in Appendix C. These practices focus on the design of receiver-type gages, which collect attribute data when used for the verification of workpieces dimensioned and toleranced in accordance with ASME Y14.5M-1994. For gaging and fixturing principles and practices, see paras. 2 through 6.

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.

A17.3 is intended to serve as the basis for state and local jurisdictional authorities in adopting retroactive requirements for existing elevators and escalators to enhance the safety of the general public. It is also intended as a standard reference of safety requirements for the guidance of architects, engineers, insurance companies, manufacturers, and contractors, and as a standard of safety practices for building owners and managers of structures where existing elevator equipment covered in the scope of the Code is used. The purpose of this Code is to establish minimum requirements that will provide a reasonable degree of safety for the general public. While many of these requirements will also increase the degree of safety for the elevator mechanic and inspector, this area has not been specifically addressed at this time.

A17.3 guides all parties engaged in the safe installation, inspection, testing, operation, and/or insurance of existing elevators and escalators; thus sparing the major capital expense of all-new equipment. As an alternative standard to A17.1, it also allows for more flexibility in problem-solving.

Intended for anyone engaged in the safety of elevators, escalators and related conveyances.

and Escalators, and ASME A17.7/CSA B44.7, Performance
Based Safety Code for Elevators and Escalators, are the
accepted guides for design, construction, installation,
operation, inspection, testing, maintenance, alteration,
and repair of elevators, dumbwaiters, escalators, moving
walks, and material lifts. They are the basis in total or
in part for elevator codes used throughout the United
States and Canada.
The ASME A17.1/CSA B44 Code and ASME A17.7/
CSA B44.7 are only guides unless adopted as law or
regulation by an authority having jurisdiction.
Local jurisdictions may, in their adopting legislation,
occasionally revise and/or include requirements in addition
to those found in the ASME A17.1/CSA B44 and
ASME A17.7/CSA B44.7 Codes. It is therefore advisable
to check with the local jurisdiction before applying code
requirements in any area.
Requirement 1.1.2 outlines examples of equipment not
covered by theASMEA17.1/CSA B44 andASMEA17.7/
CSA B44.7 Codes. Requirement 1.1.3 specifies those
Parts and requirements of the Code that apply only to
new installations, as well as those that apply to both
new and existing installations.

Keywords:
0791831183

B30.2 applies to overhead and gantry cranes with a top running bridge of single or multiple girder construction, utilizing a top running trolley, including polar, semigantry, canti-lever gantry, wall cranes, and others having the same fundamental characteristics. This volume includes both power-driven and hand-operated equipment. These cranes are grouped because they all have top running trolleys and similar travel characteristics.