BS-3504-1962.pdf
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1、BRITISH STANDARD BS 3504:1962 Incorporating Amendment No. 1 Specification for Magnesium-activated nickel for cathodes of electronic tubes and valves Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:05:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3504:1962 This British Standard, having b
2、een approved by the Telecommunication Industry Standards Committee and endorsed by the Chairman of the Engineering Divisional Council, was published under the authority of the General Council on 4 May 1962 BSI 12-1999 The following BSI references relate to the work on this standard: Committee refere
3、nces TLE/5 and TLE/5/3 Draft for comment CY(TLE) 1453 ISBN 0 580 03931 5 Co-operating organizations The Telecommunication Industry Standards Committee under whose supervision this British Standard was prepared, consists of representatives from the following Government departments and scientific and
4、industrial organizations: Admiralty* British Broadcasting Corporation* British Electrical and Allied Industries Research Association British Electrical and Allied Manufacturers Association British Radio Equipment Manufacturers Association* British Radio Valve Manufacturers Association* British Trans
5、port Commission Cable more accurate conversions should be based on the tables in BS 350, “Conversion factors and tables”. Figure 1 Apparatus for spring-back test Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:05:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 blank Licensed Copy: sheffiel
6、dun sheffieldun, na, Wed Nov 29 08:05:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3504:1962 BSI 12-1999 British Standards The following are available on application: YEARBOOK Including subject index and numerical list of British Standards15s. SECTIONAL LISTS. Gratis Acoustics Aircraft materials
7、 and components Building materials and components Chemical engineering Chemicals, fats, oils, scientific apparatus, etc. Cinematography and photography Coal, coke and colliery requisites Codes of Practice Consumer goods Documentation, including Universal Decimal Classification Drawing practice Elect
8、rical engineering Farming, dairying and allied interests Furniture, bedding and furnishings Gas and solid fuel Glassware including scientific apparatus Hospital equipment Illumination and lighting fittings Iron and steel Mechanical engineering Nomenclature, symbols and abbreviations Non-ferrous meta
9、ls Packaging and containers Paints, varnishes and colours for paints Personal safety equipment Petroleum industry Plastics Printing, paper and stationery Road engineering Rubber Shipbuilding Textiles and clothing Welding Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:05:26 GMT+00:00 2006,
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