2.6.7. Zinc Test Kit.
The Zinc Test Kit is used for the following tests:
Zinc, high range
2.0 to 20.0 mg/l
Zinc, low range
1.0 to 10.0 mg/l
The kit components and their use are:
developed when the test sample is treated. The
matched color defines the concentration of zinc in
the water sample.
Zinc Reagent: Used to treat sample water to
develop color indicating presence of zinc.
Measuring Spoon, 0.5g: Used to measure zinc
reagent for the tests.
Measuring Spoon, 0.05g: Used to measure zinc
conditioning reagent when treating for copper
Zinc Conditioning Reagent: Used to treat water
interference with test.
Graduated Test Tubes With Caps: Two identical
graduated test tubes are used to collect water
samples and to hold the samples while they are
Figure 2-11. Zinc Test Kit.
Dropping Pipet: A rubber-bulb eye dropper
marked with 0.5 and 1.0 ml volume lines. Used to
measure and transfer water samples to the test
Deionized water: Four identical containers of
purified water used for tests and to rinse test tubes
prior to tests.
2.6.8. Water Quality Analysis Procedures.
220.127.116.11. Free Acidity Test. High Range.
Purpose of Test: To determine the total acidity in a water sample in terms of the amount of calcium carbonate
required to neutralize the sample.
Range: From 0 to 500 mg/l of calcium carbonate equivalents
Equipment Used: Found in Acidity Test Kit, para 2.6.3, fig. 2-7
Standard sodium hydroxide solution, (1), fig. 2-7
Bromcresol green-methyl red, (2), fig. 2-7
Test tube, (3), fig. 2-7
Mixing bottle, (5), fig. 2-7
General Techniques Used: Refer to paragraphs cited below as required by procedure.
Planning the Test, para 18.104.22.168
Cleaning Glassware, para 22.214.171.124
Handling and Storing Reagents, para 126.96.36.199
Collecting Water Samples, para 188.8.131.52
Mixing, para 184.108.40.206
Titrating, para 220.127.116.11
Collect the water sample by filling the plastic measuring tube(3, fig. 2-7) to the brim. Pour the sample into
the mixing bottle(5).