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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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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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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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Personal identification - Requirements for biometric products - Part 5- Face biometrics. Original standard UNE-CEN TS 18212-5-2026 in PDF full version. Additional info + preview on request

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Railway applications - Driver's cab Train Display Controller (TDC) - Part 3- Other Train Systems FIS. Original standard UNE-CLC TR 50542-3-2026 in PDF full version. Additional info + preview on request

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Collection, logistics & treatment requirements for WEEE Part 6- Report on the alignment between Directive 2012/19/EU and EN 50625 series standards and EN 50614. Original standard UNE-CLC TR 50625-6-2018 IN in PDF full version. Additional info + preview on request

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