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DIN
DIN 58750-1:2013-01
En Vigor
2013-01-01
Production in optical engineering - Test of polishing agents for optical
engineering - Part 1: Physical and colloidal properties
DIN
DIN 31631-4:1987-05
En Vigor
1987-05-01
Data element catalogue for bibliographic data; codes for entries for
data categories
DIN
DIN 79161-2:2025-12
En Vigor
2025-12-01
Playground inspection - Qualification of playground inspectors - Part 2:
Examination and verification of qualification (certification) / Note:
DIN 79161-2 (2018-05) remains valid alongside this standard until 2026-06-30.
DIN










