Chlorides – Water Based Mud Testing
This test may be used for determination of Chloride content in both fresh and salt water muds.
The Chloride level must be maintained at the level specified in the drilling fluids programme.
Freshwater and Saltwater Muds: mg/l Cl- +/- 10
Sources of Error
Silver Nitrate has a limited shelf life and must be kept in a darkened container. It should be regularly standardised.