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Harmonized system of quality assessment for electronic components. Electrical relays. Generic specification: electromechanical all-or-nothing relays - Quality assessment procedures. Original standard BS QC 160000-2-1987 (2000) IEC 255-10-1979 in PDF full version. Additional info + preview on request

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Harmonized system of quality assessment for electronic components. Electrical relays. Sectional specification: electromechanical all-or-nothing relays. Original standard BS QC 160100-1987 (1999) IEC 255-19-1983 in PDF full version. Additional info + preview on request

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Specification for harmonized system of quality assessment for electronic components. Electrical relays. Blank detail specification. Electromechanical all-or-nothing relays. Test schedules 1, 2 and 3. Original standard BS QC 160101-1987 (2000) IEC 255-19-1-1983 in PDF full version. Additional info + preview on request

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Aerospace series. 3 Per Cent Chromium-Molybdenum-Vanadium Steel (Air hardening) (1 554 MPa: limiting ruling section 29 mm). Original standard BS S 134-1965 + A2-2015 in PDF full version. Additional info + preview on request

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Specification for low nickel-chromium steel (bar for the manufacture of forged bolts only). Original standard BS S 148-1969 + A2-2015 in PDF full version. Additional info + preview on request

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Specification for chromium-cobalt-molybdenum-vanadium-niobium heat-resisting steel billets, bars, forgings and parts (consumable electrode remelted) (1000-1140 MPa) (Cr 10.5, Co 6, Mo 0.8, V 0.2, Nb 0.3). Original standard BS S 152-1975 (2004) in PDF full version. Additional info + preview on request

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