What should I do if the Chemical Oxygen Demand (COD) reagents vials arrive with crystallization?

Document ID

Document ID TE225

Published Date

Published Date 27/05/2017
Question
What should I do if the Chemical Oxygen Demand (COD) reagents vials arrive with crystallization?
Summary
COD reagent vials arrive frozen
Answer
If there is crystallization in the COD reagent vials it is recommended to warm them to room temperature and the crystals should dissolve.