Hanna Instruments HI 83214 - Manual (Page 55)

55
PHOSPHORUS, TOTAL LOW RANGE
SPECIFICATIONS
Range 0.00 to 1.15 mg/L P
Resolution 0.01 mg/L
Accuracy ±0.05 mg/L or ±6 % of reading @ 25 °C, whichever is greater
Light Source Tungsten lamp with narrow band interference filter @ 610 nm
Method Adaptation of the EPA method 365.2 and Standard Methods for the Examination of
Water and Wastewater, 20 th edition, 4500-P E, ascorbic acid method. A persulfate
digestion converts organic and condensed inorganic forms of phosphates to orthophosphate.
Then the reaction between orthophosphate and the reagents causes a blue tint in the
sample.
REQUIRED REAGENTS
Code Description Q.ty/test Q.ty/set
HI 93758V-0* Reagent Vial 1 vial 50 vials
HI 93758C-0 NaOH Solution 1.54 N 2 mL 1 bottle
HI 93758-0 Phosphorus Reagent 1 packet 50 packets
PERSULFATE/P Potassium Persulfate 1 packet 50 packets
* Reagent Vial identification: P TLR, red label.
Note: Store the unused vials in their container in a cool and dark place.
REAGENT SET
HI 93758C-50 Reagents for 50 tests
For other accessories see page 68.
REQUIRED ACCESSORIES
HI 839800-01 Hanna reactor (115 VAC)
HI 839800-02 Hanna reactor (230 VAC)
HI 740216
test tube cooling rack (25 holes)
HI 740217 Laboratory bench safety shield
For other accessories see page 68.
MEASUREMENT PROCEDURE
Before using the reagent kit carefully read all the instructions and the Material Safety Data Sheet
(MSDS). Pay particular attention to all warnings, cautions and notes. Failure to do so may result
in serious injury to the operator.
Phosphorus, Total