Test strips pH , 4-9 pH units
SKU: 2745650
£13.30 Regular Price
£12.64Sale Price
Most natural waters range from pH 4 to pH 9, but commonly are above pH 7 because of carbonates and bicarbonates (alkalinity). The pH of water used in industry, boiler feed water, and swimming pools usually is kept within a narrow range. Contains 50 tests.
