LaMotte 3684-01, Instruction Manual

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SAMPLE DILUTION TECHNIQUES
If a test result is out of the range of the meter, it must be diluted. The test
should then be repeated on the diluted sample. The following table gives quick
reference guidelines for dilutions of various proportions.
Amount of Sample Deionized Water to Bring
Final Volume to 10 mL
Multiplication Factor
10 mL 0 mL 1
5 mL 5 mL 2
2.5 mL 7.5 mL 4
1 mL 9 mL 10
0.5 mL 9.5 mL 20
All dilutions are based on a final volume of 10 mL, so several dilutions will
require small volumes of the water sample. Graduated pipets should be used for
all dilutions. If volumetric glassware is not available, dilutions can be made with
the colorimeter tube. Fill the tube to the 10 mL line with the sample and then
transfer it to another container. Add 10 mL volumes of deionized water to the
container and mix. Transfer 10 mL of the diluted sample to the colorimeter tube
and follow the test procedure. Repeat the dilution and testing procedures until
the result falls within the range of the calibration. Multiply the test result by the
dilution factor. For example, if 10 mL of the sample water is diluted with three
10 mL volumes of deionized water, the dilution factor is four. The test result of
the diluted sample should be multiplied by four.
GENERAL INFORMATION
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PACKAGING AND DELIVERY
Experienced packaging personnel at LaMotte Company assure adequate
protection against normal hazards encountered in transportation of shipments.
After the product leaves LaMotte Company, all responsibility for safe delivery
is assured by the transportation company. Damage claims must be filed
immediately with the transportation company to receive compensation for
damaged goods.
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GENERAL PRECAUTIONS
READ THE INSTRUCTION MANUAL BEFORE ATTEMPTING TO SET UP OR OPERATE
THE METER. Failure to do so could result in personal injury or damage to
the meter. The meter should not be used or stored in a wet or corrosive
environment. Care should be taken to prevent water from wet tubes from
entering the meter chamber.
NEVER PUT WET TUBES IN THE METER.