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  • BS 9925-0:1984

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    Harmonized system of quality assessment for electronic components. Inductor and transformer cores for telecommunications Generic specification

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  20-04-2012

    Language(s):  English

    Published date:  28-09-1984

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    National foreword
    Committees responsible
    Section One - Scope
    1. Scope
    Section Two - General
    2. Document system
    3. Units, symbols and terminology
    4. Standard and preferred values
    5. Effective parameters
    Section Three - Quality assessment procedures
    6. Primary stage of manufacture
    7. Sampling procedure
    8. Inspection for qualification approval
    9. Quality conformance inspection
    10. Delayed delivery
    11. Certified records of released lots
    Section Four - Tests and measuring methods
    12. Visual examination and dimensions
    13. Electrical tests and measuring methods
    14. Mechanical tests
    Section Five - Blank detail specifications
    15. General
    16. Identification of the detail specification
    17. Identification of the core
    18. Supplementary information
    19. Test schedule
    Appendix A - Format for the first page of detail
                 specifications
    Appendix B - Format for the test schedule

    Abstract - (Show below) - (Hide below)

    Lists the procedures to be used in the quality assessment of inductor and transformer cores for telecommunications, and the tests and measuring methods which may be selected by the appropriate sectional and blank detail specifications for these components. Also prescribes the rules for writing blank detail specifications.

    General Product Information - (Show below) - (Hide below)

    Committee EPL/51
    Development Note Also numbered as IEC 60723-1 and QC 250000 Supersedes 78/27486 DC (10/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 9925-01.01:1984 Harmonized system of quality assessment for electronic components. Inductor and transformer cores for telecommunications Blank detail specification: magnetic oxide cores for inductor applications. Assessment level A
    BS 9925-02.01 & 02.02(1988) : 1988 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - INDUCTOR AND TRANSFORMER CORES FOR TELECOMMUNICATIONS - BLANK DETAIL SPECIFICATION: MAGNETIC OXIDE CORES FOR BROAD-BAND TRANSFORMERS - ASSESSMENT LEVELS A AND B
    BS 9925-01.0:1984 Harmonized system of quality assessment for electronic components. Inductor and transformer cores for telecommunications Sectional specification: magnetic oxide cores for inductor applications
    BS 9925-02.0:1987 Harmonized system of quality assessment for electronic components. Inductor and transformer cores for telecommunications Sectional specification: magnetic oxide cores for broad-band transformers
    BS 9925-03.0:1988 Harmonized system of quality assessment for electronic components. Inductor and transformer cores for telecommunications Sectional specification: Magnetic oxide cores for transformers and chokes for power applications
    BS 9925-03.01:1988 Harmonized system of quality assessment for electronic components. Inductor and transformer cores for telecommunications Blank detail specification: magnetic oxide cores for transformers and chokes for power applications. Assessment level A

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60431:1983 Dimensions of square cores (RM-cores) made of magnetic oxides and associated parts
    IEC 60133:2000 Dimensions of pot-cores made of magnetic oxides and associated parts
    IEC 60367-1:1982 Cores for inductors and transformers for telecommunications. Part 1: Measuring methods
    BS 5938-2:1980 Cores for inductors and transformers for telecommunications Guide to the drafting of performance specifications
    BS 4727-1:GRP07(1973) : LATEST GLOSSARY OF ELECTROTECHNICAL POWER TELECOMMUNICATION ELECTRONICS LIGHTING AND COLOUR TERMS - TERMS COMMON TO POWER TELECOMMUNICATIONS & ELECTRONICS - MAGNETISM TERMINOLOGY
    IEC 60424:1973 Guide to the specification of limits for physical imperfections of parts made from magnetic oxides
    BS 2045:1965 Preferred numbers
    BS 6454:1983 Method for calculation of the effective parameters of magnetic piece parts
    BS 5555:1981 Specification for SI units and recommendations for the use of their multiples and of certain other units
    BS 6001(1972) : AMD 5054 SAMPLING PROCEDURES FOR INSPECTION BY ATTRIBUTES - SPECIFICATION FOR SAMPLING PLANS INDEXED BY ACCEPTABLE QUALITY LEVEL (AQL) FOR LOT - BY - LOT INSPECTION
    BS 5938-1:1984 Cores for inductors and transformers for telecommunications Methods of measurement
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