State Primary Standard of Luminous Flux Unit
Reproduction, maintenance and transmission unit of flux - Lumen.
Metrological characteristics | ||
Range | from 1,0 lm to 1500 lm | |
Uncertainty by type A (uA) | 1,3⋅10-3 | |
Uncertainty by type B (uB) | 1,03⋅10-3 | |
Total standard uncertainty (uC) | 1,66⋅10- | |
Extended uncertainty (U) | 3,3⋅10-3 | |