This document is an instruction manual for a chemical test kit, providing information on the correct use of the kit.
The Hanna Instruments HI 3846 is a chemical test kit designed to measure chromium concentrations in aqueous samples. The kit includes reagent packets and a color comparator cube, utilizing the diphenylcarbohydrazide analysis method under acidic buffered conditions to produce a purple color proportional to the chromium concentration.
| Smallest Increment | 0.2 ppm |
|---|---|
| Analysis Method | Colorimetric, diphenylcarbohydrazide |
| Sample Size | 5 mL |
| Number of Tests | 100 (average) |
You must wait 6 minutes to allow the color to develop before determining the match.
It is better to view the solution against a white sheet placed at about 10 cm behind the comparator.
For the 0-1000 ppm range, you should use the HI 3845 Chromium Medium Range and High Range Test Kit.