photometer unit
photometer unit, Total:3 items.
The international standard classification for "photometer unit" includes: .
The Chinese standard classification for "photometer unit" includes: .
German Institute for Standardization
- DIN 20609:1993-11 Lighting of mine locomotives; head lamps; design features, photometric requirements, meters and measurements
Portuguese Institute of Quality
- NP 77-1956 photometric unit
Belgian Standards Institute
- NBN L 01-001-1980 Vocabulary of photometry Notions - Quantities - Units
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