1. n. [Drilling Fluids]

A quantitative analytical procedure for water-mud filtrate and for calcium in an oil mud.

See related terms: buffered solution,  calcium sulfate,  dissolved solids,  hard water,  hardness ion,  magnesium test,  make-up water,  oil/brine ratio,  retort solids,  synthetic/brine ratio,  total hardness test,  water-based drilling fluid