Total hardness is a measure of the calcium and magnesium ions in the water, referred to as the ‘hardness’ of the water. Some aquatic species prefer ‘hard’ water, and some prefer ‘soft’ water.
Total hardness can be measured using our Hardicol reagent (AP254) on a Palintest photometer. This will give a result for total hardness in mg/L CaCO3.
Sometimes the unit’s dH are used for total hardness. To convert this result to dH divide by 17.8, as 1 unit dH equals 17.8 mg/L as CaCO3.
16th May 2023
This month, we’re celebrating 40 years since Palintest joined Halma plc, a global group of life-saving technology companies. And that anniversary has given us time to look at where we have come from… and where we’re going. From 19th century enterprise to 20th century ingenuity and 21st century innovation, here is our story.
17th April 2023
Palintest’s brand-new Pooltester features a stylish, vibrant new design, but one of the standout features is that the entire case is made from 100% recycled PET. The use of 100% recycled plastics in the case is a great benefit to both retailers and end-users with strict sustainability goals, and Palintest aim to consider sustainability as a top priority in all new product development going forward.