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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 IEC 62127-2:2025-11
En Vigor
2025-11-01
Ultrasonics - Hydrophones - Part 2: Calibration for ultrasonic fields
(IEC 62127-2:2025); German version EN IEC 62127-2:2025 / Note: DIN EN
62127-2 (2018-02) remains valid alongside this standard until 2028-02-29.
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 13451-4:2025-07
En Vigor
2025-07-01
Swimming pool equipment - Part 4: Additional specific safety
requirements and test methods for starting platforms; German version EN
13451-4:2025 / Note: DIN EN 13451-4 (2014-12) remains valid alongside
this standard until 2025-11-30.
