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Materials for interconnection structures. Sectional specification set for restraining core materials - Copper/invar/copper. Original standard BS EN 61249-7-1-1996 (1999) in PDF full version. Additional info + preview on request

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Passive RF and microwave devices, intermodulation level measurement - Part 4- Measurement of passive intermodulation in coaxial cables. Original standard BS EN 62037-4-2012 + A1-2026 in PDF full version. Additional info + preview on request

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Explosive atmospheres - Part 25- Intrinsically safe electrical systems. Original standard BS EN IEC 60079-25-2022 + A1-2025 in PDF full version. Additional info + preview on request

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Fixed resistors for use in electronic equipment - Blank detail specification- Low-power film resistors with leads for through-hole assembly on circuit boards (THT), for general electronic equipment, classification level G. Original standard BS EN IEC 60115-2-10-2026 + A11-2026 in PDF full version. Additional info + preview on request

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Specifications for particular types of winding wires - Polyester or polyesterimide overcoated with polyamide-imide enamelled rectangular aluminium wire, class 200. Original standard BS EN IEC 60317-73-2018 + A1-2024 in PDF full version. Additional info + preview on request

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Connectors for electrical and electronic equipment. Tests and measurements - Endurance test schedules. Test 99b- Test schedule for unmating under electrical load. Original standard BS EN IEC 60512-99-002-2022 + A1-2025 in PDF full version. Additional info + preview on request

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