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Test method for assessing the performance of gas-phase air cleaning media and devices for general ventilation - Part 1: Gas-phase air cleaning media

Oil and gas industries including lower carbon energy - Non-metallic materials in contact with media related to oil and gas production - Part 4: Fiber-reinforced composite (ISO/DIS 23936-4:2023); English version prEN ISO 23936-4:2023

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prEN 18025

Water quality - Guidance standard on a strategic approach to river restoration

Global maritime distress and safety system (GMDSS) - Part 4: Inmarsat-C ship earth station and Inmarsat enhanced group call (EGC) equipment - Operational and performance requirements, methods of testing and required test results (IEC 80/1077/CDV:2023); Text in German and English

Refrigerating systems and heat pumps - Safety and environmental requirements - Part 3: Installation site and personal protection

Refrigerating systems and heat pumps - Safety and environmental requirements - Part 3: Installation site and personal protection

Numerical welding simulation - Execution and documentation

Numerical welding simulation - Execution and documentation

Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres

Mechanical vibration - Measurement and evaluation of machine vibration - Part 21: Horizontal axis wind turbines (ISO/DIS 20816-21:2023); Text in German and English

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