General description The Water Quality Test Paper is designed for comprehensive testing of various water quality parameters. Each barrel contains 50 strips that can test for 16 different water quality indicators, making it suitable for a wide range of applications including drinking water, aquariums, swimming pools, spas, industrial water, ponds, and hot spring water. Technical specifications Model: W-16 Quantity: 50 strips per tube Shelf Life: 1 year Material: PET Test Time: 30 seconds Test Items: total alkali, pH, cyanuric acid, carbonate, hardness, total chlorine, residual chlorine, bromine, nitrate, nitrite, iron, chromium, lead, copper, mercury, fluorine Usage After removing a test strip, immediately cap the bottle to maintain the integrity of the remaining strips. Avoid touching the test area of the strip to prevent contamination. Store the test strips in a sealed container, protected from light, and in a dry, cool place. It is recommended to use the strips within 90 days after