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ISO/IEC 16449 specifies the mechanical, physical and optical characteristics of a 80 mm, read-only optical disk to enable the interchange of such disks. It specifies the quality of the recorded signals, the format of the data and the recording method, thereby allowing for information interchange by means of such disks. This disk is identified as DVD - Read-Only Disk. ISO/IEC 16449 specifies four…

ISO/IEC 16448 specifies the mechanical, physical and optical characteristics of a 120 mm, read-only optical disk to enable the interchange of such disks. It specifies the quality of the recorded signals, the format of the data and the recording method, thereby allowing for information interchange by means of such disks. This disk is identified as DVD - Read-Only Disk. ISO/IEC 16448 specifies four…

ISO/IEC 16449 specifies the mechanical, physical and optical characteristics of a 80 mm, read-only optical disk to enable the interchange of such disks. It specifies the quality of the recorded signals, the format of the data and the recording method, thereby allowing for information interchange by means of such disks. This disk is identified as DVD - Read-Only Disk. ISO/IEC 16449 specifies four…

This standard is divided into five sections, each dealing with a specific example of standardized fuse for use by authorized persons: Section I: Fuses with fuse-links with blade contacts. Section II: Fuses with fuse-links for bolted connections. Section III: Fuses with fuse-links having cylindrical contact caps. Section IV: Fuses with fuse-links with offset blade contacts. Section V: Fuses with…

Specifies four standard designs of starting performance of single speed three-phase cage induction motors for direct on-line or star-delta starting and rated on the basis of duty-type S-1 (maximum continuous rating). Also covers dual voltage motors in so far as the flux saturation level is the same for both voltages.

1. Scope 1.1 This standard applies to centrifugal pumps that require a driver-rated output of 373 W (1/2 hp) nominal up to and including 7.46 kW (10 hp) nominal. 1.2 This Standard specifies the method for testing centrifugal pumps to determine the following characteristics: (a) the total head produced by the pump versus the pump rate of flow; (b) input power versus pump rate of flow; and (c)…

1 PURPOSE AND SCOPE This standard specifies requirements with respect to the physical, mechanical and dimensional characteristics of ductile-iron pipe intended for use in water pressure piping systems of diameters 75 mm through 1600 mm for bell and spigot-joint pipe and flanged-joint pipe, and diameters 75 mm through 600 mm for mechanical-joint pipe, as well as test methods applying to…

This international Standard defines terms of the possible imperfections in oxyfuel gas, laser beam and plasma cuts in metallic materials which are collected and grouped. Imperfections are irregularities or deviations from the specified shape and location of cut. This international Standard only includes imperfections originating directly from oxyfuel gas, laser beam and plasma arc cutting; any…

This standard is concerned with conducted disturbances in the frequency range from 0 kHz to 9 kHz, with an extension up to 148,5 kHz specifically for mains signalling systems. It gives compatibility levels for public low voltage a.c. distribution systems having a nominal voltage up to 420 V, single-phase or 690 V, three-phase and a nominal frequency of 50 Hz or 60 Hz. Compatibility levels are…

This International Standard describes by pictorial representation most of the more common terms, in English, French and German, for types of joints, joint preparation and welds. This International Standard can be used on its own or in conjunction with other similar standards. NOTE 1 The figures in this International Standard are only sketches that have been drawn to illustrate the typical…