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TherOzone Directions for use of Chemetrics K-7402 Testing Kit
to Evaluate Aqueous Ozone Production of T-8000 or T-1000 Unit
Download Instruction Page (T-8000 testing is similar to T-1000 testing)

Demonstration of K-7402

Purchase Chemetrics K-7402 Testing Kit

SUMMARY OF TESTING T-8000 or T-1000 FOR AQUEOUS OZONE PRODUCTION

STEP ONE
STEP ONE
STEP TWO
Step Two


Add 5 drops of A-7400 Activator Solution to the sample cup.
Add 12.5 ml of water to be ozonated from the cold TherOzone water bottle before the bottle is placed on the TherOzone Unit for ozonation.



STEP THREE:
T-8000

STEP FOUR:
Step Four


Place TherOzone water bottle on TherOzone unit for complete cycle (5 minutes, 15 seconds).

Remove TherOzone water bottle when cycle stops and add 12.5 ml of the ozonated water to the 25 ml mark being careful to minimize turbulence. Analyze immediately.




STEP FIVE:
Step Five
STEP  SIX:
Step Six


Place Chemetric’s ampoule in the sample cup. Snap the tip by pressing the ampoule against the side
of the cup. The ampoule will fill leaving a small bubble to facilitate mixing.

Mix the contents of the ampoule by inverting it several times, allowing the bubble to travel from end to end each time. Wipe all liquid from the exterior of the ampoule. Wait 1 minute for color development.


Using the high range comparator in a nearly horizontal position while standing directly beneath a bright source of light. Place the Chemetric’s ampoule between the color standards moving it from left to right along the comparator until the best color match is found. Multiplying the indicator number by 2, your sample should be between the 3.2—4.0 ppm range. If not, your T-8000 or T1000 unit may not be functioning optimally. Contact TherOzone.

[e.g., 1.6 - 2.0 X 2 = 3.2-4.0 ppm]









Video Demonstration of Chemetrics K-7402 Testing Kit
to Evaluate Aqueous Ozone Production of T-8000 (testing for T-1000 is the same as for the T-8000).




SUMMARY OF TESTING T-8000 or T-1000 FOR AQUEOUS OZONE PRODUCTION


•  The best way to evaluate the optimal functioning of the T-8000 or T-1000 Unit is to use the CHEMetrics K-7402 testing kit as directed above, to properly dilute the sample and determine the aqueous ozone content produced by the T-8000 or T-1000 unit.

•  Please note the CHEMetrics Test Kit K-7402 only measures up to 2.0ppm (+/- 0.3ppm) and your T-8000 or T-1000 unit produces up to 4.0ppm (+/- 0.2ppm), so you will need to follow the above TherOzone's Specific Dilution Instructions to properly evaluate the aqueous ozone production of your T-8000 or T-1000 unit.

•  The test kit can be purchased through the TherOzone Products Store Online by downloading the pdf order form and calling TherOzone directly at 310-581-5585 or faxing the filled out form to 310-581-5702.  Go to the TherOzone Product Store.

•  The CHEMetrics K-7402 Test kit uses
The DDPD Method (Developed by CHEMetrics, Inc.) and the The Indigo Method to accurately measure the ozone content in an aqueous water solution.

The DDPD chemistry employs a methyl-substituted form of the DPD reagent. The A-7400 activator solution (potassium iodide) is added to the sample before analysis. Ozone reacts with the iodide to liberate iodine. The iodine then reacts with the reagent to give a purple color.

Various free halogens and halogenating agents produce color with the reagent. Chromate in samples below 25 ppm will not interfere with results. Results are expressed as ppm (mg/L) O3.

With the indigo method, indigo trisulfonate reacts instantly and quantitatively with ozone, bleaching the blue color in direct proportion to the amount of ozone present. Malonic acid is included in the ampoule to prevent interference from up to 3 ppm chlorine. Results are expressed as ppm (mg/L) O3.

References:
Bader H. J. Hoigne. Determination of Ozone in Water by the Indigo MethodWater Research 1981;15: 449-56.
APHA Standard Methods:
Method 4500-03 B.  20th ed. 1998: 4-137.

•  The MATERIAL SAFETY DATA SHEET for the Ozone Activator Solution (A-7402) can be downloaded by clicking here.  The the Ozone Activator Solution is an accessory solution used in conjunction with reagent ampoules in the determination of ozone in water. Each bottle contains approximately 10 mL of accessory solution.

•  The  Reagent ampoules (R-7402) are used to help determination of the ozone in water. Each CHEMet™ ampoule contains approximately 0.50 mL of liquid reagent sealed under vacuum and its MATERIAL SAFETY DATA SHEET can be downloaded by clicking here.

•  The 7402 Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Low and High Range Comparators, Activator Solution, 25 mL sample cup, instructions, and MSDS.  NOTE: You will not be using the "Low Range Comparator" and will need to specifically follow "TherOzone's Instructions" for evaluating the diluted sample.

•  The Activator Solution Pack, 10 mL bottles and High Range Comparator have  shelf-lives of  2 years.

•  Click here to view
video demonstration of chemetrics K-7402 testing kit to evaluate aqueous ozone production of T-8000 (testing for T-1000 is the same as for the T-8000).

•  For further questions please see contact information below and be sure to follow step by step
Directions for Use of T-8000 Unit or Directions for Use of T-1000 Unit.


TherOzone, LLC, 2701 Ocean Park Blvd., Ste 108, Santa Monica, CA 90405 USA
Telephone: 310.581.5585  •  Facsimile: 310.581.5702   • 
info@therozone.com

© TherOzone  2010
All rights are reserved by TherOzone, LLC to the electronically printed material herein