Cores for inductors and transformers for telecommunications - Part 1: Measuring methods
Applies to magnetic cores, mainly made of magnetic oxides or metallic powders, used in inductors and transformers for telecommunication equipment and electronic devices employing similar techniques. Gives guidance for the drafting of those parts of specifications for magnetic cores that are concerned with measuring methods for magnetic and electric core properties.
1. Scope
1.1 Before an attempt can be made to measure or gauge the requirements specified on engineering drawings or specifications, to ascertain whether an actual size or value meets the specified limits, it is essential to establish a precise interpretation of the limiting values, and the standard conditions under which they shall be measured. It is the intent of this standard to provide…
Radio-frequency cables - Part 0: Guide to the design of detailed specifications
Lays down requirements for flexible or semi-flexible radio-frequency cables of coaxial or twin conductor types designed for use in radiocommunication equipment and in electronic devices employing similar techniques. The dielectric may be of the solid, air-spaced, or semi-airspaced types, consisting of a thermoplastic of low-loss polymeric resin or of a thermosetting compound, or of a mineral…
Câbles pour fréquences radioélectriques - Partie 0: Guide pour l'établissement des spécificatio...
Etablit des prescriptions pour les câbles coaxiaux flexibles ou semi-flexibles ainsi que pour les conducteurs du type jumelé (ou en paires) pour fréquences radioélectriques destinés à être utilisés dans les équipements de radiocommunication et dans les systèmes électroniques basés sur des techniques analogues. Le diélectrlque de ces câbles peut être du type massif, aéré, ou semi-aéré et réalisé…
1. Scope
1.1 This Standard is concerned with the geometric irregularities of surfaces of solid materials. It establishes defi nite classifications for roughness, waviness, lay, and a set of symbols for drawings, specifications, and reports, and makes reference to requirements for Tracer Type Instruments, and specificati ons for Precision Reference Standards and Texture Comparison Specimens.…
Information technology — Automatic identification and data capture techniques — EAN/UPC bar code sym...
Manufacturers of bar code equipment and users of bar code technology require publicly available standard symbology specifications to which they can refer when developing equipment and software.
ISO/IEC 15420:2009 specifies the requirements for the bar code symbology known as EAN/UPC. It specifies EAN/UPC symbology characteristics, data character encodation, dimensions, tolerances, decoding…
ISO 8995-2:2005 specifies lighting requirements for outdoor work places, which meet the needs for visual comfort and performance. All usual visual tasks are considered.
ISO 8995-2:2005 does not specify lighting requirements with respect to the safety and health of workers at work, although the lighting requirements, as specified in this standard, usually fulfil safety needs.
ISO 8995-2:2005…
