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DIN
DIN EN ISO 11704:2025-09
En Vigor
2025-09-01
Water quality - Gross alpha and gross beta activity - Test method using
liquid scintillation counting (ISO/DIS 11704:2025); German and English
version prEN ISO 11704:2025 / Note: Date of issue 2025-08-15*Intended as
replacement for DIN EN ISO 11704 (2024-07).
DIN
DIN EN ISO 6145-7/A1:2025-11
En Vigor
2025-11-01
Gas analysis - Preparation of calibration gas mixtures using dynamic
methods - Part 7: Thermal mass-flow controllers - Amendment 1:
Correction of formula C.4 (ISO 6145-7:2018/DAM 1:2025); German and
English version EN ISO 6145-7:2018/prA1:2025 / Note: Date of issue
2025-10-24*Intended as an amendment to DIN EN ISO 6145-7 (2019-07).
DIN
DIN EN 13848-4:2025-11
En Vigor
2025-11-01
Railway applications - Track - Track geometry quality - Part 4:
Measuring systems - Manual and lightweight devices; German version EN 13848-4:2025
DIN
DIN 14677-2:2025-09
En Vigor
2025-09-01
Maintenance of electrically controlled hold-open systems for fire and
smoke door assemblies as well as for electrically controlled hold-open
systems for fire barriers in the course of ground-bound conveying
systems - Part 2: Minimum qualification and proof of competence of
maintenance personnel / Note: Date of issue 2025-07-25*Intended as
replacement for DIN 14677-2 (2018-08).
