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Original standard BS EN 61843-1997 (2000) in PDF full version. Additional info + preview on request

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Printed boards Part 4: Rigid multilayer printed boards with interlayer connections Sectional specification Section 1: Capability detail specification Performance levels A, B and C. Original standard BS EN 62326-4-1-1997 (1999) in PDF full version. Additional info + preview on request

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Printed boards - Part 4: Rigid multilayer printed boards with interlayer connections - Sectional specification. Original standard BS EN 62326-4-1997 (2000) in PDF full version. Additional info + preview on request

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Hollow metallic waveguides - Part 2: Relevant specifications for ordinary rectangular waveguides. Original standard BS EN IEC 60153-2-2025 in PDF full version. Additional info + preview on request

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Optical fibre cables - Generic specification. Basic optical cable test procedures. Mechanical test methods. Torsion, method E7. Original standard BS EN IEC 60794-1-107-2025 in PDF full version. Additional info + preview on request

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Optical fibre cables - Generic specification. Basic optical cable test procedures. Mechanical tests methods. Straight midspan access to optical elements, Method E29. Original standard BS EN IEC 60794-1-129-2025 in PDF full version. Additional info + preview on request

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