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- 47b157dc180944d8bf175e6ee2101382167-5b3f136dc8d2b71 type ProvenanceStatement @default.
- 47b157dc180944d8bf175e6ee2101382167-5b3f136dc8d2b71 label "Every two year the spectrophotometers are calibrated by an external company. A 1000W NIST-traceable reference lamp is used to make an absolute calibration. For the absolute UV calibration small 50W lamps are used once a month to verify the calibration level." @default.