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Fire detection and fire alarm systems Part 7: Smoke detectors Point smoke detectors that operate using scattered light, transmitted light or ionization. Original standard UNE-EN 54-7-2019 in PDF full version. Additional info + preview on request

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Gas welding equipment Hose connections for equipment for welding, cutting and allied processes. Original standard UNE-EN 560-2019 in PDF full version. Additional info + preview on request

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Amendment 52 - Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 1: Lamp caps (IEC 60061-1:1969/A52:2015, modified). Original standard UNE-EN 60061-1-1993 A52-2016 in PDF full version. Additional info + preview on request

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Amendment 53 - Lamp caps and holders together with gauges for the control of interchangeability and safety Part 1: Lamp caps. Original standard UNE-EN 60061-1-1993 A53-2015 in PDF full version. Additional info + preview on request

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Amendment 55 - Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 1- Lamp caps. Original standard UNE-EN 60061-1-1993 A55-2017 in PDF full version. Additional info + preview on request

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Corrigendum - Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 1: Lamp caps. Original standard UNE-EN 60061-1-1993 A56-2017 AC-2017 in PDF full version. Additional info + preview on request

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