Determines watercolor by comparing the water to platinum cobalt color standards representing APHA standard color units, this color test kit tests 0, 20, 50, 80, 110, 140, 170, and 200 APHA color units. This kit includes a comparator, test tubes, a case, and a color bar with a scale of 0 to 200 APHA units.
Determines watercolor by comparing the water to platinum cobalt color standards representing APHA standard color units, this color test kit tests 0, 20, 50, 80, 110, 140, 170, and 200 APHA color units. This kit includes a comparator, test tubes, a case, and a color bar with a scale of 0 to 200 APHA units.
