Copper alloys — Determination of iron content — Na2EDTA titrimetric method
The method is applicable to contents of iron in all types of copper alloys listed in International Standards. ISO 4748 specifies principle, reagents, apparatus, procedure, expression of results and test report.
Copper and copper alloys — Determination of sulfur content — Combustion titrimetric method
The method is applicable to contents of sulfur greater than 0,010 % (m/m) in all types of copper and copper alloys listed in International Standards. Specifies principle, reagents, apparatus, procedure, expression of results and test report. Figure 1 demonstrates the apparatus for the determiantion of sulfur by combustion, figures 2 and 3 illustrate some details.
Cinematography — Camera usage of 8 mm Type S motion-picture film — Specifications
This International Standard specifies the position of the emulsion, the frame rate of exposure, and the orientation of the area being exposed for 8 mm Type S motion-picture film cameras.
Lever switches. Part 1: General requirements and rules for the preparation of detail specifications
Applies to lever switches for use in electronic and electromechanical equipment, including switches necessary to connect the supply mains. Switches covered by this standard have a maximum rated voltage not exceeding 500 V and a maximum rated current not exceeding 25 A (d.c. or a.c. r.m.s. values).
Establishes uniform specifications and type test requirements for lever switches also establish…
Tubular fluorescent lamps for general lighting service
Gives technical requirements for tubular fluorescent lamps with preheated cathodes for general lighting service, operated with or without a starter from a.c. mains, also describes tests for the lamps with non-preheated cathodes operated without the use of a starter. Gives testing methods to be used for checking quality and interchangeability for type testing, for individual lamp batches or for a…
Dimensions of ball and socket couplings of string insulator units
Applies to string insulator units of the cap and pin and long rod types and their associated metal fittings for overhead lines. Includes six standard sizes designated by the nominal pin diameters which form the basis of the standard. Defines each standard size by the dimensions of the pin ball, of the socket and the hook-on 'Go' gauge. States dimensions of twin-balled pins for coupling…
1. Scope
1.1 This standard describes the formats, rules, and procedures for the encoding of alphanumeric text and pictorial information for videotex and teletext¹ applications. (¹The term teletext (not yet adopted by CCIR) is commonly used to refer to a broadcast television videotex service. It is different from teletex, a term officially adopted by CCITT to define a specific type of…
Cinematography — Projector usage of 8 mm Type S motion-picture film for direct front projection
This International Standard specifies the emulsion orientation, the rate of projection and the Position of the image area for 8 mm Type S motion-picture film as used for direct front projection.
Building construction — Modular coordination — Multimodules for horizontal coordinating dimensions
Establishes the values of multimodules for horizontal coordinating dimensions for use in modular coordination of buildings. Applies to the design and construction of buildings of all types in accordance with the principles and rules of modular coordination laid down in ISO 2848. The international standardized values of multimodules for horizontal coordinating dimensions are 3 M, 6 M, 12 M, 30 M…
Plain bearings — Ring type thrust washers made from strip — Dimensions and tolerances
Specifies a range of thrust washers for general purpose use with wrapped bushes. Applies to thrust washers having inside diameters from 6 to 80 mm. It ist not expected that all the sizes listed will be available from stock but adoption of standard sizes should lead to economies in tooling costs.
