Hanna Instruments HI 83214 Instruction Manual

51PHOSPHORUS, ACID HYDROLYZABLEPhosphorus, Acid HydrolyzableSPECIFICATIONSRange 0.00 to 1.60 mg/L PResolution 0.01 mg/LAccuracy ±0.05 mg/L or ±5 % of reading @ 25 °C, whichever is greaterLight Source Tungsten lamp with narrow band interference filter @ 610 nmMethod Adaptation of the EPA method 365.2 andStandard Methods for the Examination ofWater and Wastewater, 20th edition, 4500-P E, ascorbic acid method. A mild aciddigestion converts condensed inorganic forms of phosphates to orthophosphate. Thenthe reaction between orthophosphate and the reagents causes a blue tint in thesample.REQUIRED REAGENTSCode Description Q.ty/test Q.ty/setHI 93758V-0AH* Reagent Vial 1 vial 50 vialsHI 93758B-0 NaOH Solution 1.20 N 2 mL 1 bottleHI 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 SETHI 93758B-50 Reagents for 50 testsFor other accessories see page 68.REQUIRED ACCESSORIESHI 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 shieldFor other accessories see page 68.MEASUREMENT PROCEDUREBefore 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 resultin serious injury to the operator.• Preheat the Hanna Reactor HI 839800 to 150 °C (302 °F). For correct use of the reactor follow ReactorInstruction 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 explosiveatmosphere.