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Information technology. Cabling installation - Testing of installed optical fibre cabling. Original standard BS EN 50174-4-2025 in PDF full version. Additional info + preview on request

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Automatic channel installation (ACI). Original standard BS EN 50203-1997 (1999) in PDF full version. Additional info + preview on request

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Common interface specification for conditional access and other digital video broadcasting decoder applications. Original standard BS EN 50221-1997 in PDF full version. Additional info + preview on request

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Code of practice for the safe use of fully enclosed oil-filled electrical equipment which may be contaminated with PCBs. Original standard BS EN 50225-1997 in PDF full version. Additional info + preview on request

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Railway applications. Current collection systems. Requirements for and validation of measurements of the dynamic interaction between pantograph and overhead contact line. Original standard BS EN 50317-2025 in PDF full version. Additional info + preview on request

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Basic standard on measurement and calculation procedures for human exposure to electric, magnetic and electromagnetic fields (0 Hz - 300 GHz). Original standard BS EN 50413-2019 + A1-2025 in PDF full version. Additional info + preview on request

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