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Petroleum, petrochemical and natural gas industries. Calculation of heater-tube thickness in petroleum refineries. Original standard UNE-EN ISO 13704-2022 in PDF full version. Additional info + preview on request

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Plastics piping systems. Elastomeric-sealing-ring-type socket joints for use with plastic pressure pipes. Test method for leak tightness under negative pressure, angular deflection and deformation. Original standard UNE-EN ISO 13844-2022 in PDF full version. Additional info + preview on request

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Welding. General tolerances for welded constructions. Dimensions for lengths and angles, shape and position. Original standard UNE-EN ISO 13920-2023 in PDF full version. Additional info + preview on request

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Metallic materials. Charpy V-notch pendulum impact test. Instrumented test method. Original standard UNE-EN ISO 14556-2023 in PDF full version. Additional info + preview on request

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Electronic fee collection. Application interface definition for dedicated short-range communication. Original standard UNE-EN ISO 14906-2023 in PDF full version. Additional info + preview on request

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Road vehicles. Vehicle to grid communication interface. Physical and data link layer conformance test for wireless communication. Original standard UNE-EN ISO 15118-9-2023 in PDF full version. Additional info + preview on request

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