LOW RANGE PHOSPHATE KIT
Code 3121-02 | Low Range Comparator, 0.0-2.0 ppm
QUANTITY CONTENTS CODE
2 x 30 mL *Phosphate Acid Reagent *V-6282-G
*Reagent is a potential health
hazard. READ SDS: lamotte.com
Emergency information:
Chem-Tel USA 1-800-255-3924
Int’l, call collect, 813-248-0585
5 g Phosphate Reducing Reagent V-6283-C
2 Test Tubes, 2.5-5-6.5-10 mL,
glass, w/cap
0844
1 Pipet, 1.0 mL, plastic 0354
1 Spoon, 0.1 g, plastic 0699
1 Low Range Comparator Viewer 1102
1 Phosphate Low Range Comparator
Bar 0.0-2.0 ppm
3122-01
To order individual reagents or test kit components, use the
specified code number.
Warning! This set contains chemicals that may be harmful if misused. Read cautions on individual containers carefully.
Not to be used by children except under adult supervision.
NOTES:
◊ This test determines levels of orthophosphates only.
◊ This test should be run on clear samples only. Filter the sample if necessary.
◊ Best results are obtained when solution temperatures are 23-25˚C.
USE OF THE LOW RANGE COMPARATOR
The Low Range Comparator allows extremely faint colors to be matched to
color standards by viewing the reaction down the length of the tube increasing
the path length by ten times compared to comparators that view the reaction
across the diameter of the tube.
fig. 1 fig. 2 fig. 3 fig. 4
1. Slide the Low Range Comparator Bar into the Low Range Comparator Viewer (fig.1).
2. Fill a test tube to the 10 mL line with untreated sample water. Insert it in the rear hole on
the top of the Low Range Comparator (fig.2).
3. Fill a test tube with sample water. Follow the test procedure. Remove the cap. Insert the
tube in the front hole on the top of the Low Range Comparator (fig.3).
4. Position the comparator so that light shines down through the test tubes (fig.4). Tilt the
comparator until the color standards and sample are illuminated. Match the color of the
reaction to the color standards. Read the result from the Low Range Comparator Bar.
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©2023 LaMotte Company, All Rights Reserved 63121-02 10.24.2023
PROCEDURE
1. Slide the Phosphate Low Range Comparator Bar (3122-01) into Low Range Comparator
Viewer (1102). Fill one test tube (0844) to the 10 mL line with sample water. Place in
Low Range Comparator.
2. Fill test tube (0844) to 10 mL line with sample water.
3. Use 1.0 mL pipet (0354) to add 1.0 mL of *Phosphate Acid Reagent (V-6282). Cap and
mix.
4. Use 0.1 g spoon (0699) to add one level measure of *Phosphate Reducing Reagent (V-
6283). Cap and mix until dissolved. Wait 5 minutes.
5. Remove cap from test tube. Place tube in the Low Range Comparator. Match sample
color to a color standard. Record as ppm Orthophosphate.
