Standards World

IEC 60227-2:2003 pdf free download – Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V

IEC 60227-2:2003 pdf free download - Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V 3.1.1 General The requirements are given in 5.6.3.1 of lEC 60227-1. This test does not apply to tinsel...

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ISO 630-1:2011 pdf free download – Structural steels – Part 1: General technical delivery conditions for hot-rolled products

ISO 630-1:2011 pdf free download - Structural steels - Part 1: General technical delivery conditions for hot-rolled products. 6.4 Mechanical properties 6.4.1 General Under the inspection and testing conditions specified in Clauses 7, 8 and 9, and...

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ISO 286-2:2010 pdf free download – Geometrical product specifications (GPS)- Iso code system for tolerances on linear sizes一 Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts

ISO 286-2:2010 pdf free download - Geometrical product specifications (GPS)- Iso code system for tolerances on linear sizes一 Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts. For more detailed information on...

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ISO 179-1:2010 pdf free download – Plastics一Determination of Charpy impact properties一 Part 1: Non-instrumented impact test

ISO 179-1:2010 pdf free download - Plastics一Determination of Charpy impact properties一 Part 1: Non-instrumented impact test. B.1 General B.1.1 Tables B.1 and B.2 are based on round robins1) performed in accordance with ASTM E691. For each material,...

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IEC 61334-6:2000 pdf free download – Distribution automation using distributionline carrier systems

IEC 61334-6:2000 pdf free download - Distribution automation using distributionline carrier systems 6 Encoding procedures 6.1 Encoding of an INTEGER value A-XDR provides two types of encoding for the ASN.1 INTEGER type, depending on whether theASN.1 definition...

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BS ISO 10803:2011 pdf free download – Design method for ductile iron pipes

BS ISO 10803:2011 pdf free download - Design method for ductile iron pipes. where DN is the nominal diameter of pipe as defined in ISO 2531 and ISO 7186, in millimetres. Nominal pipe wall thicknesses for various...

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IEC 61000-4-3:2020 pdf free download – Electromagnetic compatibility (EMC)

IEC 61000-4-3:2020 pdf free download - Electromagnetic compatibility (EMC) 1 Scope This part of lEC 61000 is applicable to the immunity requirements of electrical and electronicequipment to radiated electromagnetic energy. lt establishes test levels and the required...

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IEC 61000-3-3:2021 pdf free download – Electromagnetic compatibility (EMC)

IEC 61000-3-3:2021 pdf free download - Electromagnetic compatibility (EMC) 1 Scope This part of lEC 61000 is concerned with the limitation of voltage fluctuations and flickerimpressed on the public low-voltage system. lt specifies limits of voltage changes...

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ISO 178:2010 pdf free download – Plastics一Determination of flexural properties

ISO 178:2010 pdf free download - Plastics一Determination of flexural properties. When determining the flexural modulus, the deflection-measuring system shall be capable of measuring the change in deflection to an accuracy of 1 % of the relevant value...

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IEC 60974-10:2020 pdf free download – Arc welding equipment

IEC 60974-10:2020 pdf free download - Arc welding equipment 4.3Artificial mains network Measurement of the mains terminal disturbance voltage shall be made using an artificialmains network,if commercially available，consisting of 50 Q/50 uH or 50 Q/50 uH +...

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