Words similar to hardness

Example sentences for: hardness

How can you use “hardness” in a sentence? Here are some example sentences to help you improve your vocabulary:

3 Pimephales promelas tests were performed in soft, synthetic freshwater; total hardness, 40-48 mg/L as CaCO3, by J. Dryer, Aquatic Biology Section, EMSL-Cincinnati.
It is recommended that total alkalinity and total hardness also be measured in the undiluted effluent test water, receiving water, and the dilution water.
Wet chemical methods used to measure hardness, alkalinity, and total residual chlorine must be standardized prior to use each day according to the procedures for those specific EPA methods (see EPA Methods 130.
To be adequate for general laboratory use following dechlorination, the tap water is passed through a deionizer and carbon filter to remove toxic metals and organics, and to control hardness and alkalinity.
Reagents for hardness and alkalinity tests (see USEPA Methods 130.