How often should a calibration check be done on the DR300?

Dokument-ID

Dokument-ID TE6258

Veröffentlichungsdatum

Veröffentlichungsdatum 06.01.2022
Frage
How often should a calibration check be done on the DR300?
Zusammenfassung
Pocket Colorimeter calibration check
Antwort
It is recommended that the calibration on the DR300 should be checked every 3 months using SpecCheck Secondary Gel Standards. Regulatory agencies may have different requirements. 
A primary standard solution should also be used periodically to validate the test procedure, reagents, and instrument. Instructions for performing an Accuracy Check - Standard Solution Method can be found in the Hach method.

This is also true for the Pocket Colorimeter II.