Hanna Instruments hi 38042 ユーザーズマニュアル

Instruction Manual

www.hannainst.com

Dear Customer,
Thank you for choosing a Hanna Product.
Please read the instruction sheet carefully before using the
test kit. It will provide you with the necessary information
for correct use of the kit. If you need additional information,
do not hesitate to e-mail us at tech@hannainst.com.
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 93709A-0 Citrate Buffer Reagent, packets (100 pcs);
• HI 93709B-0 Sodium Periodate Reagent, packets (100

pcs);

• 1 checker disc (containing a mirror, a mirror holder

and the 38072 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 38042

Manganese

Low Range

Test Kit

ISTR38042 10/00 PRINTED IN ITALY

Manganese is not present in natural waters but it is found
in various salts and minerals, frequently associated with

iron compounds. Manganese salts are used as fertilizer
additives, in ferroalloys (in steel manufacture), in non-
ferrous alloys as it improves their corrosion resistance and
hardness.
Manganese is not considered to be toxic to man and
aquatic life and it is ingested as a trace nutrient, both in
food and water. Nonetheless manganese has been limited
in drinking water since it causes tenacious stains to laundry

and because it produces objectionable tastes in beverages.
Manganese is commonly found in domestic wastewater,

industrial effluents and receiving streams.
Note: mg/L is equivalent to ppm (parts per million).

SPECIFICATIONS

SIGNIFICANCE AND USE

CHEMICAL REACTION

INSTRUCTIONS

The reaction between manganese and reagents causes a
violet tint in the sample which is proportional to the
manganese concentration.

READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT
• Verify that the mirror, its holder and the disc are pre-

installed in the checker disc. If not, install them as
shown in the figure.

Range

0 to 3.0 mg/L (ppm) as Mn

Smallest Increment

0.2 mg/L (ppm) Mn

Analysis Method

Colorimetric

Sample Size

20 mL

Number of Tests

100

Case Dimensions

235x175x115 mm (9.2x6.9x4.5")

Shipping Weight

560 g (19.8 oz.)

20 mL

The chemicals contained in this kit may be hazardous if

improperly handled. Read the relevant Health and Safety
Data Sheet before performing this test.

HEALTH AND SAFETY

REFERENCES

Adaptation of the Periodate Oxidation Method, Standard
Methods for the Examination of Water and Wastewater

edition.

• Using the plastic pipette, fill each glass

vial with 20 mL of sample (up to the
mark).

• Insert one of the vials into the left hand opening of the

checker disc. This is the blank.

• Add to the other

vial 1 packet of
HI 93709A-0 re-
agent. Replace the
cap and swirl to

mix.

• Remove the cap

and add 1 packet
of HI 93709B-0 re-
agent. Replace the
cap and swirl to
mix.

• Wait for 1 minute and 30

seconds to allow reaction to
occur. This is the reacted
sample.

• Remove the cap and insert the reacted sample into the

right hand opening of the checker disc.

• Hold the checker disc so that

a light source illuminates the
samples from the top.

• Keep the checker disc at a

distance of 30-40 cm (12-
16") to match the color.
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
divide it by 3 to obtain mg/L (or ppm) of Manganese.

For best results: Perform the reading three times and take

the average value (divide by 3 the sum of the three
numbers). Intensely colored samples will make the color

matching difficult and they should be adequately treated
before performing the test. Suspended 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.

Interferences:

Calcium above 700 ppm, magnesium above

100000 ppm, chloride above 7000 ppm, iron above
5 ppm.