Platinum-Cobalt/Hazen/APHA Color Scale, Lovibond® - 10-250mg/Pt/l - 433250

The Lovibond® AF325 is a test kit for visual color grading of Platinum-Cobalt/Hazen/APHA Color over the range 10 – 250mg Pt/l. It is typically used for lightly colored liquids such as ground water and chemicals. The color is determined by visually matching a column of sample in a Nessler cylinder with precalibrated colored glass standards, which are stable-colored and not affected by UV light or extreme environmental conditions. Because the sample colors are relatively unsaturated, the kit employs a long path length Nessleriser comparator to give greater measurement sensitivity and accuracy. Includes: Nessleriser 2150 with Daylight 2000 Lighting Unit and Nessler cylinders, Pt-Co/Hazen discs NSH & NSB, and stand for using Nessleriser with natural lighting.