Do not allow reagents to come in contact with eyes.
Do not ingest.
Chemical reagents are corrosive or
poisonous or both.
If ingested, induce vomiting.
Zinc Test Procedure, 0 to 10.0 mg/1 range.
Using the 1 ml dropper, add 2 ml (2 droppers full) of the
test sample to one of the graduated test tubes.
Add de-ionized water exactly to the mark and mix.
small measure (0.05g) of the Zinc conditioning reagent.
Using the large measure marked 0.5g, add one level measure
of zinc test reagent.
Close tube with finger and shake for 15 sec-
Some of the reagent may not dissolve, but do not shake for
longer than the specified 15 seconds.
Compare immediately with the zinc color standard block.
Should the amount of zinc reagent added be too little
or too much, the intensity of the test color may
differ slightly from that of the color standards.
since each zinc color standard shows a dis-
tinct difference in shade, it should be possible to
make an accurate reading even though there is a dif-
ference in the intensity.
Copper Interference - If copper is present in the water
sample, it will interfere with the zinc test.
For samples containing
copper, the procedure is as follows:
After steps (a) and (b) add
0.05g of Zinc Conditioning Reagent and shake to dissolve.
with steps (c) and (d).
Zinc Test Procedure, 2.0 - 20.0 mg/1 Range.
If the color of
the test sample exceeds that of the 10.0 mg/1 value, use 1 ml sample,
then proceed with step b. of paragraph 2-17e(2) above.
standard value must now be multiplied by a factor of 2.
MULTIPURPOSE TEST KIT (SPECTROPHOTOMETER).
photometer is a single-beam optical, analytical instrument designed to
provide direct readouts of concentrations of particular substances in
water when the substances are reacted chemically with specific
reagents to cause color developments proportional to the degree of
A variable interference light filter, or filter wedge,
provides a means of adjusting the wavelength of the light when it
penetrates the reacted sample and is seen by the photocell.
wavelength is adjustable anywhere within the range of 400 to 700