gb/t3978
gb/t3978, Total:2 items.
The international standard classification for "gb/t3978" includes: Colours and measurement of light , Optics and optical measurements .
The Chinese standard classification for "gb/t3978" includes: Electric lighting in general , Electric light source products .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 3978-1994 Standard illuminants and illuminating-viewing conditions
- GB/T 3978-2008 Standard illuminants and geometric conditions
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