Instruction Manual
www.hannainst.com
Dear Customer,
Thank you for choosing a Hanna Product.
Please read the instructions carefully before using the
chemical test kit. It will provide you with the necessary
information for correct use of the kit.
Remove the chemical test kit from the packing material and
examine it carefully to make sure that no damage has
occurred during shipping. If there is any noticeable dam-
age, notify your Dealer or the nearest Hanna office
immediately.
Each kit is supplied with:
• HI 93722-0 Reagent, packets (100 pcs);
• 1 glass test tube (25 mL);
• 1 plastic vessel (50 mL);
• 1 plastic pipette (3 mL);
• 1 spoon.
Note:
Any damaged or defective item must be returned in
its original packing materials.
HI 3851
Cyanuric Acid
Test Kit
ISTR3851 10/99 PRINTED IN ITALY
Cyanuric Acid (CYS) is widely applied in swimming pools to
slow down the decomposition of chlorine. In outside pool
areas, this process is accelerated by the effect of ultraviolet
rays. With a correct dose, it can save up to 80% of normal
chlorine consumption in pools during peak sunny months.
Cyanuric acid is also used in chlorinated bleaches and
selective herbicides.
Note:
mg/L is equivalent to ppm (parts per million).
Range
10 to 100 mg/L (ppm)
as Cyanuric Acid
Smallest Increment
5 mg/L from 10 to 30 mg/L
10 mg/L from 30 to 100 mg/L
Analysis Method
Turbidimetric
Sample Size
25 mL
Number of Tests
100
Case Dimensions
275x57x78 mm (10.8x2.2x3.1")
Shipping Weight
195 g (6.9 oz.)
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USE
CHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTION
READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT
• Fill the plastic vessel with 25
mL of the sample, up to the
mark.
• Add 1 packet of HI 93722-0 reagent and, using the
spoon, mix gently to dissolve.
• Wait for 1 minute
to allow reaction
to occur.
• Keep the test tube on a white
surface and look from the top at
the black line visible on the
bottom of the tube. Use the
plastic pipette to fill the vial
drop by drop with the reacted
sample until the black line has
completely disappeared.
• Read the concentration in mg/L
(ppm) of Cyanuric Acid in corre-
spondence of the level of the
liquid in the test tube.
INSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONS
The chemicals contained in this kit may be hazardous if
improperly handled. Read Health and Safety Data Sheet
before performing this test.
HEALTH AND SAFETY
HEALTH AND SAFETY
HEALTH AND SAFETY
HEALTH AND SAFETY
HEALTH AND SAFETY
REFERENCES
REFERENCES
REFERENCES
REFERENCES
REFERENCES
Adaptation of the turbidimetric method.
The reaction between cyanuric acid and the reagent causes
a white suspension in the sample. The turbidity is propor-
tional to the concentration of cyanuric acid.
12
3
6
9
1’
Note:
In the case the line on the bottom disappears with
the liquid level under the 100 ppm mark , the
cyanuric acid concentration is higher than 100 ppm;
in the case the line disappears above the 10 ppm
mark, the cyanuric acid concentration is lower than
10 ppm.
