• Test Kits

  • Premixed • Premeasured • Precise

Alkalinity Test Kits

Alkalinity Test Kits

Visual Kits

Range MDL Method Kit Catalog No. Refill Catalog No.
10-100 ppm as CaCO3 (Total) 10 ppm Acid Titrant with pH Indicator K-9810
50-500 ppm as CaCO3 (Total) 50 ppm Acid Titrant with pH Indicator K-9815
100-1000 ppm as CaCO3 (Total) 100 ppm Acid Titrant with pH Indicator K-9820


The alkalinity of water is a measurement of its buffering capacity. Alkalinity of natural waters is typically a combination of bicarbonate, carbonate, and hydroxide ions. Sewage and wastewaters usually exhibit higher alkalinities due to the presence of silicates and phosphates.

Alkalinity inhibits corrosion in boiler and cooling waters. It is also measured as a means of controlling water and wastewater treatment processes or the quality of various process waters.

Alkalinity (total)

References: ASTM D 1067-06, Acidity or Alkalinity of Water, Test Method B. APHA Standard Methods, 23rd ed., Method 2320 B – 1997. USEPA Methods for Chemical Analysis of Water and Wastes, Method 310.1 (1983).

CHEMetrics’ total alkalinity tests determine total or M alkalinity using a hydrochloric acid titrant and a bromocresol green/methyl red indicator. The end point of the titration occurs at pH 4.5. Results are expressed as ppm (mg/L) CaCO3.