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DIN
DIN EN ISO 16634-1:2025-09
En Vigor
2025-09-01
Food products - Determination of the total nitrogen content by
combustion according to the Dumas principle and calculation of the crude
protein content - Part 1: Oilseeds and animal feeding stuffs (ISO/DIS
16634-1:2025); German and English version prEN ISO 16634-1:2025 / Note:
Date of issue 2025-08-15*Intended as replacement for DIN EN ISO 16634-1 (2009-07).
DIN
DIN EN 4131:2025-09
En Vigor
2025-09-01
Aerospace series - Bolt, normal hexagonal head, coarse tolerance normal
shank, medium length thread, in heat resisting nickel base alloy,
aluminium IVD coated - Classification: 1250 MPa (at ambient
temperature)/425 °C; German and English version prEN 4131:2025 / Note:
Date of issue 2025-07-25*Intended as replacement for DIN EN 4131 (2010-08).
DIN
DIN EN ISO 14644-5:2025-09
En Vigor
2025-09-01
Cleanrooms and associated controlled environments - Part 5: Operations
(ISO 14644-5:2025); German version EN ISO 14644-5:2025
DIN
DIN EN 18226:2025-09
En Vigor
2025-09-01
Feather and down - Test methods - Determination of the quantitative
composition of feather and down blended with other materials; German and
English version prEN 18226:2025 / Note: Date of issue 2025-08-01
