Hanna Instruments hi 3882 사용자 설명서

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 3882-0 pH 3.0-5.0 Reagent, 1 bottle with

dropper (25 mL);

• 1 checker disc;
• 2 glass vials with caps;
• 1 plastic pipette (3 mL).

Note: Any damaged or defective item must be returned in

its original packing materials.

HI 3882

pH 3.0-5.0

Test Kit

ISTR3882 10/99 PRINTED IN ITALY

pH represents acidity or alkalinity of an aqueous solution
and is proportional to the hydrogen-ion concentration of the
solution. Under neutral conditions water is dissociated into
the OH

and H

ions in equal ratio and hence it has a pH

of 7. When bases or acids are added to a water solution
they ionize, increasing the concentration of OH

or H

respectively. Thus solutions with a pH of 1-3 contain strong
acids, whereas those with a pH of 4-6 contain weak acids.
Weak bases result in solutions of pH 8-10 and strong bases
in pH of 11-13.

Examples of pH value for some liquids:
Liquid

Liquid

pH Value

Sea water

7.8-8.2

Gastric juices

1.7

Milk

6.5-7

Soil

6-7 (optimum for crops)

Range

3.0 to 5.0 as pH unit

Smallest Increment

0.1 as pH unit

Analysis Method

Colorimetric

Sample Size

5 mL

Number of Tests

200

Case Dimensions

165x150x38 mm (6.5x5.9x1.5")

Shipping Weight

215 g (7.6 oz.)

SPECIFICATIONS

SIGNIFICANCE AND USE

CHEMICAL REACTION

HI 3882-0 reagent reacts in contact with the aqueous
solution changing its color according to the hydrogen-ion
concentration (pH) in the given range.

READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT
Note::::: Always shake the reagent bottle be-

fore use.

• Using the plastic pipette, fill each glass

vial with 5 mL of sample, up to the
mark.

• Insert one of them into the left hand

opening of the checker disc. This is the

blank.

• Add to the other glass vial 2 drops of HI 3882-0

reagent. Replace the cap and mix the solution by
gently swirling. This is the reacted sample.

• Remove the cap and in-

sert the reacted sample
into the right hand open-
ing of the checker disc.

• Hold the checker disc so

that a light source illumi-
nates the samples from
the back windows.

REFERENCES

Vogel's, Quantitative Chemical Analysis, 5

Ed., Longman

Scientific & Technical.

HEALTH AND SAFETY

The chemicals contained in this kit may be hazardous if
improperly handled. Read Health and Safety Data Sheet
before performing this test.

• Rotate the disc while looking at the color test windows

and stop when you find the color match. Read the
value in the result window and record it in pH units.

Note: A concentration of Chlorine above 50 ppm causes

interference inhibiting the development of the color.
In this case require the HI 3882/O Test Kit.

For best results: Intensely colored samples will make the color

matching determination difficult and they should be
adequately treated before performing the test. Sus-
pended matter in large amounts should be removed

by prior filtration.

Caution:

Ultraviolet radiation may cause fading of colors.

When not in use, keep the disc protected from light,
in a cool and dry place.

INSTRUCTIONS