|666-R013||Neutral density glass filters: NG11, NG5, NG4, NG3||666R013RE|
|666-R113||Neutral density glass filters: NG5, NG4, NG3, Holmium glass filter||666R113RE|
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Request for the recertification of your reference plate directly from us.
Recertifications of UV/Vis reference plates from other manufacturers are generally also possible in our calibration laboratory.