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International Electrotechnical Vocabulary (IEV) - Part 731- Optical fibre communication. Original standard IEC 60050-731-1991 in PDF full version. Additional info + preview on request

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Amendment 1 - International Electrotechnical Vocabulary (IEV) - Part 731- Optical fibre communication. IEC 60050-731:1991-10/AMD1:2016-12(en-fr). Original standard IEC 60050-731-1991 amd1-2016 in PDF full version. Additional info + preview on request

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Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 731- Optical fibre communication. IEC 60050-731:1991-12/AMD2:2017-08(en-fr). Original standard IEC 60050-731-1991 amd2-2017 in PDF full version. Additional info + preview on request

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Amendment 3 - International Electrotechnical Vocabulary (IEV) - Part 731- Optical fibre communication. IEC 60050-731:1991-12/AMD3:2018-10(en-fr). Original standard IEC 60050-731-1991 amd3-2018 in PDF full version. Additional info + preview on request

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Amendment 4 - International Electrotechnical Vocabulary (IEV) - Part 731- Optical fibre communication. Original standard IEC 60050-731-1991 amd4-2019 in PDF full version. Additional info + preview on request

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Amendment 5 - International Electrotechnical Vocabulary (IEV) - Part 731- Optical fibre communication. Original standard IEC 60050-731-1991 amd5-2020 in PDF full version. Additional info + preview on request

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