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Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 2: Assessment of conformity. Original standard UNE-CEN TS 1329-2-2026 in PDF full version. Additional info + preview on request

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Gas-fired central heating boilers - Part 3-3: 100 % Hydrogen - Expansion of EN 15502-2-1:2022. Original standard UNE-CEN TS 15502-3-3-2026 in PDF full version. Additional info + preview on request

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Advanced technical ceramics. Mechanical properties of ceramic fibres at high temperature under non-reactive environment. Determination of creep behaviour by the hot grip method. Original standard UNE-CEN TS 15658-2026 in PDF full version. Additional info + preview on request

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Electronic invoicing - Part 13: Functional specification and guidance for the eInvoice Registry of CIUS and Extensions. Original standard UNE-CEN TS 16931-13-2026 in PDF full version. Additional info + preview on request

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Guidelines for the onboarding of user personal identification data within European Digital Identity Wallets. Original standard UNE-CEN TS 18098-2026 in PDF full version. Additional info + preview on request

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Personal identification - Requirements for biometric products - Part 3: Functionality evaluation methodology. Original standard UNE-CEN TS 18212-3-2026 in PDF full version. Additional info + preview on request

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