51
PHOSPHORUS, ACID HYDROLYZABLE
Phosphorus, Acid Hydrolyzable
SPECIFICATIONS
Range
0.00 to 1.60 mg/L P
Resolution
0.01 mg/L
Accuracy
±0.05 mg/L or ±5 % 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 mild acid
digestion converts 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-0AH*
Reagent Vial
1 vial
50 vials
HI 93758B-0
NaOH Solution 1.20 N
2 mL
1 bottle
HI 93758-0
Phosphorus Reagent
1 packet
50 packets
*
Reagent Vial identification:
P AH
, white label.
Note
: Store the unused vials in their container in a cool and dark place.
REAGENT SET
HI 93758B-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.
•
Preheat the Hanna Reactor HI 839800 to 150 °C (302 °F). For correct use of the reactor follow Reactor
Instruction Manual.
The optional HI 740217 safety shield is strongly recommended.
DO NOT USE AN OVEN OR MICROWAVE
samples may leak and generate a corrosive and possibly explosive
atmosphere.