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Water quality. Determination of biochemical oxygen demand after n days (BODn) - Dilution and seeding method with allylthiourea addition. Original standard BS EN 1899-1-1998 (2008) BS 6068-2.63-1998 in PDF full version. Additional info + preview on request
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Water quality. Determination of biochemical oxygen demand after n days (BODn) - Method for undiluted samples. Original standard BS EN 1899-2-1998 (2008) BS 6068-2.64-1998 in PDF full version. Additional info + preview on request
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Industrial valves. Marking of metallic valves. Original standard BS EN 19-2023 in PDF full version. Additional info + preview on request
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Materials and articles in contact with foodstuffs. Non-metallic tableware. Terminology. Original standard BS EN 1900-1998 in PDF full version. Additional info + preview on request
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Specification for harmonized system of quality assessment for electronic components. Family specification: digital integrated TTL circuits series 54, 64, 74, 84. Original standard BS EN 190101-1994 (1999) in PDF full version. Additional info + preview on request
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Specification for harmonized system of quality assessment for electronic components. Family specification: digital integrated TTL low power SCHOTTKY, circuits, series 54LS, 64LS, 74LS, 84LS. Original standard BS EN 190103-1994 (2000) in PDF full version. Additional info + preview on request
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