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Standards [CURRENT]

DIN ISO 17123-3

Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 3: Theodolites (ISO 17123-3:2001)
Edition 2019-01

Standards [CURRENT]

DIN ISO 17123-2

Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 2: Levels (ISO 17123-2:2001)
Edition 2023-12

Standards [CURRENT]

DIN EN ISO 6143

Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures (ISO 6143:2001); German version EN ISO 6143:2006
Edition 2006-11

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