4649d6c5_on_Procedure___Ophir_Photonics__Explanation
[0] 2 [Item] Transfer of calibration from NIST master to working master [2] ±0.6% [Explanation] 
From statistics of deviations between calibration and independent check of calibration for this special calibration
Power/Energy Meter Calibration Procedure - Ophir Photonics
Explanation