BS ISO IEC 24723 pdf download
BS ISO IEC 24723 pdf download Information technology — Automatic identification and data capture techniques — GS1 Composite bar code symbology specification 1 Scope This International Standard defines the requirements for the GS1 Composite symbology. It specifies the GS1 Composite symbology characteristics, data character encodation, symbol formats, dimensions and print quality requirements, error correction rules, and reference decoding algorithms. For...
IEC 60034-2-2 pdf download
IEC 60034-2-2 pdf download Rotating electrical machines – Part 2-2: Specific methods for determining separate losses of large machines from tests – Supplement to IEC 60034-2-1 1 Scope This part of IEC 60034 applies to large rotating electrical machines and establishes additional methods of determining separate losses and to define an efficiency supplementing IEC 60034-2-1 . These methods apply when...
IEC 60034-18-32 pdf download
IEC 60034-18-32 pdf download Rotating electrical machines – Part 18-32: Functional evaluation of insulation systems – Test procedures for form-wound windings – Evaluation by electrical endurance 1 Scope This part of IEC 60034-1 8 describes test procedures for the evaluation of electrical endurance of insulation systems for use in a.c. or d.c. rotating electrical machines using form-wound windings. The test...
IEC 60050-445 pdf download
IEC 60050-445 pdf download International Electrotechnical Vocabulary – Part 445: Time relays 1Scope This part of lEC 60050 defines terms related to specified-time relays. ln the past, IEC 60050-446(Part 446 of the lEV) listed the terminology for all types of electricalrelays. In order to improve the precision of terms and definitions as well as the general visibilityof relay terminology, it...
IEC 60068-2-5 pdf download
IEC 60068-2-5 pdf download Environmental testing – Part 2-5: Tests – Test Sa: Simulated solar radiation at ground level and guidance for solar radiation testing 5.3 Humidity Different humidity conditions, particularly condensation, can markedly affect photochemical degradation of materials, paints, plastics, etc. If required, the values of IEC 60068-2-78 shall be preferred. The relevant specification shall state the humidity and...
IEC 60068-2-53 pdf download
IEC 60068-2-53 pdf download Environmental testing – Part 2-53: Tests and guidance – Combined climatic (temperature/humidity) and dynamic (vibration/shock) tests Specimens may be repositioned for shock or vibration along another axis at standard climatic conditions according to IEC 60068-1 , as required by the relevant specification. The dynamic test shall be continued when the required test temperature and humidity has...
IEC 60317-1 pdf download
IEC 60317-1 pdf download Specifications for particular types of winding wires – Part 1: Polyvinyl acetal enamelled round copper wire, class 105 1 Scope This Part of IEC 6031 7 specifies the general requirements of enamelled round copper winding wires of class 1 05 with a sole coating based on polyvinyl acetal resin, which may be modified providing it retains...
IEC 60317-17 pdf download
IEC 60317-17 pdf download Specifications for particular types of winding wires – Part 17: Polyvinyl acetal enamelled rectangular copper wire, class 105 1 Scope This part of IEC 6031 7 specifies the requirements of enamelled rectangular copper winding wires of class 1 05 with a sole coating based on polyvinyl acetal resin, which can be modified provided it retains the...
IEC 60705 pdf download
IEC 60705 pdf download Household microwave ovens – Methods for measuring performance 1 Scope This International Standard applies to microwave ovens for household use. It also applies to combination microwave ovens. This standard defines the main performance characteristics of household microwave ovens which are of interest to the user, and it specifies methods for measuring these characteristics. NOTE 1 This...
IEC 60749-15 pdf download
IEC 60749-15 pdf download Semiconductor devices – Mechanical and climatic test methods – Part 15: Resistance to soldering temperature for through-hole mounted devices 5 Procedure 5.1Pre-conditioning of specimens Any special pre-conditioning of the specimens prior to testing shall be as specified in the relevant specification. This preparation may include operations such as bending or other relocation of leads, and the...