Instruction Manual
HI 3833
Phosphate
Test Kit
ISTR3833R5 01/07
Phosphates are widely introduced into the environment from
such sources as agricultural fertilizers, cleaning and laundering
products, boiler water conditioners, and drinking water
treatment aids.
At high levels, phosphates stimulate the growth of
photosynthetic organisms which may contribute to
eutrophication of lakes, rivers, and ponds. This makes it
important to monitor and control phosphate discharges into
the environment.
Phosphates can be classified as ortho, condensed or organically
bound. As with existing test kits on the market, the Hanna
Phosphate Test Kit will only determine ortho phosphate
levels.
NOTE: mg/L is equivalent to ppm (parts per million).
Range 0 to 5 mg/L (ppm) PO4
3-
Smallest Increment 1 mg/L (ppm) PO4
3-
Analysis Method Colorimetric
Sample Size 10 mL
Number of Tests 50
Case Dimensions 220x145x55 mm (8.7x5.7x2.1")
Shipping Weight 160 g (6 oz.)
Dear Customer,
Thank you for choosing a Hanna Product.
Please read this instruction manual 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 damage,
notify your Dealer or the nearest Hanna office immediately.
Each kit is supplied with:
• 1 plastic beaker (20 mL);
• 1 color comparator cube;
• HI 3833-0 Phosphate Reagent (50 pcs).
Note: Any damaged or defective item must be returned in
its original packing materials.
The orthosphosphate level in mg/L (or ppm) is determined
by a colorimetric method. Ammonium molybdate and
potassium antimonyl tartrate react in acid medium with
orthophosphate to form a phosphomolybdate complex, that
is reduced to intensely colored molybdenum blue by ascorbic
acid. The color intensity of the solution determines the
phosphate concentration.
• 1987 Annual Book of ASTM Standard, Volume 11.01
Water (1).
• Standard Methods for the Examination of Water and
Wastewater, 20th Edition, 1998.
READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT
• Remove the cap from the plastic vessel. Rinse the plastic
vessel with water sample, fill it to 10 mL mark.
• Add 1 packet of HI 3833-0 Phosphate Reagent.
• Replace the cap and mix solution until solids dissolve.
• Remove the cap and transfer the solution into the color
comparator cube. Let set for 1 minute.
• Determine which color matches the solution in the cube
and record the result as mg/L (ppm) of phosphate
(PO4
3-).
Significance and Use
Specifications
Chemical Reaction
ReferencesInstructions
The chemicals contained in this kit may be hazardous if
improperly handled. Read the relevant Safety Data Sheet
before performing this test.
Safety Data Sheets
Accessories
HI 3833-050 replacement kit (50 tests)
HI 3833-99 color comparator cube for phosphate kit
HI 740032P cap for 20 ml plastic beaker (10 pcs)
HI 740037P 20 ml plastic beaker (10 pcs)
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