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NA 041

DIN Standards Committee Heating and Ventilation Technology and their Safety

About NHRS Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees

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Drafts of NA 041

Number: 50

DIN EN ISO 41012 2026-03 Facility management - Guidance on strategic sourcing and the development of agreements (ISO/DIS 41012:2026); German and English version prEN ISO 41012:2026 More 
DIN EN 17248 2026-03 District heating and district cooling pipe systems - Terms and definitions; German and English version prEN 17248:2026 More 
DIN EN 18289 2026-02 Ventilation for buildings - Metallic ventilation ducts - Requirements and test methods; German and English version prEN 18289:2026 More  Read draft and comment
DIN EN 15450 2026-02 Heating systems in buildings - Design of heat pump heating systems; German and English version prEN 15450:2026 More  Read draft and comment
DIN EN ISO 14644-15 2026-01 Cleanrooms and associated controlled environments - Part 15: Assessment of suitability for use of equipment and materials by airborne chemical concentration (ISO/FDIS 14644-15:2025); German and English version prEN ISO 14644-15:2025 More  Read draft and comment
DIN EN 15316-7-1 2025-12 Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 7-1: DHW instantaneous heat recovery - Module M8-13; German and English version prEN 15316-7-1:2025 More 
DIN EN ISO 14644-13 2025-12 Cleanrooms and associated controlled environments - Part 13: Cleaning of surfaces to achieve defined levels of cleanliness in terms of particle and chemical concentration (ISO/FDIS 14644-13:2025); German and English version prEN ISO 14644-13:2025 More 
DIN EN ISO 14644-14 2025-12 Cleanrooms and associated controlled environments - Part 14: Assessment of suitability for use of equipment by airborne particle concentration (ISO/FDIS 14644-14:2025); German and English version prEN ISO 14644-14:2025 More 
DIN EN 489-2 2025-11 District heating pipes - Factory made flexible pipe systems - Part 2: Joint casing systems; German and English version prEN 489-2:2025 More 
DIN EN 18213-1 2025-10 District heating and district cooling pipes - Bonded single and twin pipe systems for directly buried hot and cold water networks - Part 1: Qualification testing of fitter; German and English version prEN 18213-1:2025 More 

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