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1. Scope 1.1 General This Standard covers wrought steel buttwelding fittings, including extruded headers and factory-produced bends, primarily intended for use in oil or gas pipeline systems. 1.2 Size, Grade, and Category 1.2.1 Size This Standard covers fittings in sizes from NPS 1/2 to NPS 60, inclusive. (Refer to Appendix A, Table A1.) 1.2.2 Grade This Standard covers…

1. Scope 1.1 General This Standard covers wrought steel flanges primarily intended for use in oil or gas pipeline systems. 1.2 Size, Grade, Nominal Pressure Class, and Category 1.2.1 Size This Standard covers flanges in sizes from NPS 1/2 to NPS 60, inclusive. (Refer to Appendix A, Table A1.) 1.2.2 Grade This Standard covers flanges from Grade 248 to Grade 483, inclusive.…

1. Scope 1.1 General This Standard covers steel valves primarily intended for use in oil or gas pipeline systems. The following types of valves are covered: (a) gate valves; (b) plug valves; (c) ball valves; and (d) check valves. 1.2 Size, Nominal Pressure Class, and Category 1.2.1 Size This Standard covers valves in sizes from NPS 2 to NPS 60, inclusive. (Refer to…

1. Scope 1.1 This Standard specifies the test method to be used in measuring the electrical characteristics of uninterruptible power supplies. It applies to the following general types of UPS systems: (a) standby; (b) on-line; and (c) line interactive. The UPS systems to be evaluated may be used to operate any type of linear or nonlinear load. 1.2 This Standard outlines the tests to be used…

This National Standard of Canada is equivalent to International Standard ISO/TR 14049:2000. 1 Scope This Technical Report provides examples about practices in carrying out an Life Cycle Inventory analysis (LCI) as a means of satisfying certain provisions of ISO 14041. These examples are only a sample of the possible cases satisfying the provisions of the standard. They should be read as…

1. SCOPE 1.1 This Standard covers requirements and test methods for closed cell polyurethane and polyisocyanurate cellular plastic thermal insulation in the form of flat rigid boards covered on both sides with a facing material and primarily intended for use in applications where the continuous use temperature is within the range -60ºC to +93ºC. These rigid boards are not intended to…

1. Scope 1.1 This Standard applies to structural antennas, towers, antenna-supporting structures, and roof- and wall-mounted structures, including their components, such as guys and foundations. It covers the structural design, fabrication, and erection of new structures, and the modification of existing structures. 1.2 This Standard is not intended to apply to (a) attachment antennas and…

The Fibre Distributed Data Interface (FDDI) is intended for use in a high performance general-purpose multi-station network and is designed for efficient operation with a peak data rate of 100 Mbit/s. It uses a Token Ring Architecture with optical fibre as the transmission medium. FDDI provides for hundreds of stations operating over an extent of tens of kilometers. The FDDI Media Access Control…

Applies to fibre optic switches. These have the following features: -they are passive without optoelectronic elements; -they have two or more states in which power may be routed betweenports; -the ports are optical fibres or optical fibre connectors. This standard establishes uniform requirements for their optical, mechanical and environmental properties. It also establishesmeasurement and test…

This publication is based on IEC 60801-2 (second edition: 1991). It relates to the immunity requirements and test methods for electrical and electronic equipment subjected to static electricity discharges, from operators directly, and to adjacent objects. It additionally defines ranges of test levels which relate to different environmental and installation conditions and establishes test…