API FRESHWATER MASTER TEST KIT COLOR CHART PDF

To remove childproof safety cap: With one hand, push red tab left with thumb while unscrewing cap with free hand. Fill a clean test tube with 5 ml of water to be tested to the line on the tube. Add three drops of Indicator Solution, holding dropper bottle upside down in a completely vertical position to ensure uniformity of drops. Cap the test tube and invert tube several times to mix solution. DO NOT hold finger over open end of tube, as this may affect the test results. Determine the pH reading by matching the color of the solution against those on the pH Color Chart.

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By debcc , 5 years ago 9, Please sign in To submit your vote please sign in or sign up , it is free and takes a few seconds. Fill a clean test tube with 5 ml of water to be tested to the line on the tube. Add 3 drops of Test Solution, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops.

Cap the test tube and invert tube to mix solution. Do not hold finger over open end of tube as this may affect the pH of the test solution. Determine the pH by comparing the color of the solution with those on the pH color chart.

The tube should be viewed against a white background in a well-lit area. Directions for testing Wide Range pH: 1. Add 5 drops of Wide Range Indicator Solution, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops. Directions for testing Ammonia: 1. Add 8 drops from Ammonia Test Solution Bottle 1, holding the dropper bottle upside down in a completely vertical position to assure uniformity of drops added to the water sample.

Add 8 drops from Ammonia Test Solution Bottle 2, holding the dropper bottle upside down in a completely vertical position to assure uniformity of drops added to the water sample. Cap the test tube and shake vigorously for 5 seconds. Do not hold finger over the open end of the tube, as this may affect the test results.

Wait 5 minutes for the color to develop. Read the test results by matching the test solution against the ammonia color chart. The tube should be viewed against the white area beside the color chart. Color comparisons are best made in a well-lit area. Directions for testing Nitrite: 1. Add 5 drops of Nitrite Test Solution, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops.

Cap the test tube and shake well for 5 seconds. Do not hold finger over open end of tube as this may affect the test results. Wait 5 minutes for full color to develop. Hold the test tube against the white area above the color chart, compare the sample with the printed colors.

The closest match indicates the total nitrite in the water sample. Directions for testing Nitrate: 1. Add 10 drops from Nitrate Test Solution Bottle 1, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops. Cap the test tube and invert tube several times to mix solution.

Vigorously shake the Nitrate Test Solution Bottle 2 for at least 30 seconds. This step is extremely important to insure accuracy of test results. Now add 10 drops from Nitrate Test Solution Bottle 2, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops. Cap the test tube and shake vigorously for 1 minute.

Read the test results by comparing the color of the solution to the appropriate Nitrate Color Card choose either Fresh water or Salt water. The tube should be viewed in a well-lit area against the white area of the card.

Rinse the test tube with clean water after use.

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