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Radio frequency connectors - Technical specification of electrical tests. Uncertainty specification of frequency domain test for return loss. Original standard PD IEC TS 61169-1-51-2020 in PDF full version. Additional info + preview on request

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Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Test methods for interconnection structures (printed boards). Appearance inspection method for plated surfaces on PWB. Original standard PD IEC TS 61189-3-301-2016 in PDF full version. Additional info + preview on request

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Electrical installation guide - Application guidelines for low-voltage direct current electrical installations not intended to be connected to a public distribution network. Original standard PD IEC TS 61200-102-2020 in PDF full version. Additional info + preview on request

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Determination of long-term radiation ageing in polymers - Techniques for monitoring diffusion-limited oxidation. Original standard PD IEC TS 61244-1-2014 in PDF full version. Additional info + preview on request

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Determination of long-term radiation ageing in polymers - Procedures for predicting ageing at low dose rates. Original standard PD IEC TS 61244-2-2014 in PDF full version. Additional info + preview on request

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Artificial pollution tests on high-voltage ceramic and glass insulators to be used on d.c. systems. Original standard PD IEC TS 61245-2015 in PDF full version. Additional info + preview on request

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