Water mission CN-65 Hach Chlorine Test Kit User Guide

: June 4, 2024
: Water mission

Table of Contents

Water mission CN-65 Hach Chlorine Test Kit
Hach Chlorine Test Kit Instructions
- Test preparation
- Test procedure-Free or total chlorine (0-3.4 mg/L C)
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Water mission CN-65 Hach Chlorine Test Kit

Hach Chlorine Test Kit Instructions

The following excerpts are from Hach’s Chlorine (Free or Total) Test Manual available at: https://www.hach.com/asset-get.download-en.jsa?id=7639982644

Test preparation

CAUTION: A Review the Safety Data Sheets (MSDS/SDS) for the chemicals that are used. Use the recommended personal protective equipment.
NOTICE: This product has not been evaluated to rest for chlorine and chloramines in medical applications in the United States.

Analyze samples immediately after collection.
Put the color disc on the center pin in the color comparator box (numbers to the front).
Use sunlight or a lamp as a light source to find the color match with the color comparator box. Rinse the tubes with sample before the test.
Rinse the tubes with deionized water after the test If the color match is between two segments, use the value that is in the middle of the two segments
If the color disc becomes wet internally, pull apart the flat plastic sides to open the color disc. Remove the thin inner disc. Dry all parts with a soft cloth. Assemble when fully dry.
Undissolved reagent does not have an effect on test accuracy.
For free chlorine, read the result immediately after the reagent is added to prevent interference from monochloramine. If the sample contains 3.0 mg/L monochloramine, the free chlorine result increases each minute by 0.1 mg/L

Test procedure-Free or total chlorine (0-3.4 mg/L C)

Fill two tubes to first line comparator box (5 mL) with sample
Put one tube the into the left opening of the color comparator box
Add one DPD (Free or Total) Chlorine Powder Pillow to the second tube
Swirl to mix. A pink color develops
For free chlorine, read the result within 1 minute For total chlorine, wait 3 minutes. Read the result within 6 minutes. box.
Put the second tube into color comparator box
Hold the color in the front of a light Source Turn the Color disc to find the color match.
Read the result in mg/L in the Scale window.