NSI QCI-123
Designed for colorimetric assays. Yields a 1.00ppm working standard. Certified for both Total and free chlorine.
To use, snip open the tube and dilute directly into 25mL cuvette.
Prepare for use while still cold. Keep away from light. Add about 10 to 15mL reagent water to a 25mL cuvette. Hold tube into the flask or cuvette and squeeze the bottom of the tube. The solution will release into the vessel. Bring to volume and mix by inversion 3 to 6 times. Proceed directly to analysis. Analysis should be completed as quickly as possible.