Phosphorus, Reactive - Hach POCKET COLORIMETER II Instruction Manual

Phosphorus, Reactive

(Also called Orthophosphate)
For water, wastewater, and seawater.
®
PhosVer 3 (Ascorbic Acid) Method*
USEPA accepted for reporting**
Measuring Hints
• For more accurate results, determine a reagent blank for each new lot of
PhosVer 3 reagent. Perform
Subtract this value from each result obtained with the same lot of PhosVer 3
reagent.
• The optional AccuVac
minimizing exposure to the sample, and providing controlled conditions for
filling the ampule.
Note:
The Pocket Colorimeter II is designed to measure solutions contained in sample cells.
dip the meter in the sample or pour the sample directly into the cell holder.
DO NOT
* Adapted from Standard Methods for the Examination of Water and Wastewater.
** Procedure is equivalent to Method 365.2 for wastewater and Standard Method 4500-P-
E for drinking water.
(0.02 to 3.00 mg/L PO
steps 1–10
®
Snapper simplifies testing by retaining the broken tip,
1—15
using deionized water as the sample.
3–
)
4
Method 8048