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Public transport. Reference data model - Fare management. Original standard UNE-EN 12896-5-2019 in PDF full version. Additional info + preview on request

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Public transport. Reference data model - Passenger information. Original standard UNE-EN 12896-6-2019 in PDF full version. Additional info + preview on request

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Public transport. Reference data model. Management information & statistics. Original standard UNE-EN 12896-8-2019 in PDF full version. Additional info + preview on request

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Amendment 1 - Water supply Specification for indirectly heated unvented (closed) storage water heaters. Original standard UNE-EN 12897-2017 + A1-2020 in PDF full version. Additional info + preview on request

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Products used for treatment of water intended for human consumption. Inorganic supporting and filtering materials. Definitions. Original standard UNE-EN 12901-2000 in PDF full version. Additional info + preview on request

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Products used for treatment of water intended for human consumption. Pumice. Original standard UNE-EN 12906-2013 in PDF full version. Additional info + preview on request

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