LaMotte PPK-R User Manual
POLYPHOSPHATE KIT
LOW RANGE COMPARATOR, 0-15 ppm
CODE 7340-R-01
QUANTITY CONTENTS CODE
60 mL *PPK Reagent A *7342-H
60 mL PPK Reagent B 7343-H
60 mL PPK Reagent C 7344-H
1 Distilled Water Ampoule, 5 mL 2748
1 Pipet, 1.0 mL, plastic 0354
1 Pipet, plain, w/cap 0392
1 Pipet, 0.5 mL, w/cap 0369
3 Test Tubes, 2.5-5.0-10.0 mL, w/caps 0844
100 sheets Filter Paper 0465
1 Funnel, plastic 0459
1 Low Range Comparator 2071
1 Polyphosphate Low Range Comparator, 0-15 ppm PO
4
7345-01
*WARNING: Reagents marked with an * are considered to be potential health hazards.
To view or print a Material Safety Data Sheet (MSDS) for these reagents go to
www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or fax.
To order individual reagents or test kit components, use the specifi ed code number.
This kit is designed to measure uncombined or active polyphosphates. The test result
may therefore differ from results obtained in procedures which do not differentiate
between combined and uncombined polyphosphates. Orthophosphate is not recorded.
However, the test results are expressed in terms of equivalent orthophosphate (PO4).
INTERFERENCES
Some make-up waters may contain unidentifi ed interferences which will cause small
errors in the fi nal test result. Therefore it is advisable to run a blank test on a sample of
the make-up water prior to the addition of the polyphosphate treatment compound. The
blank test result should then be subtracted from the test result obtained in Step 6. Test
sample dilutions should be made with demineralized water or with the polyphosphatefree make-up water for which the blank test factor has already been determined.
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.
PROCEDURE
1. Fill a tube (0844) to 10 mL line with sample water.
NOTE: If water is not clear, fi lter before testing.
2. Use the plain pipet (0392) to add 10 drops of PPK Reagent C (7344). Cap and
mix thoroughly.
3. Use the 0.5 mL pipet (0369) to add 0.5 mL of *PPK Reagent A (7342). Cap and
mix thoroughly.
4. Use the 1.0 mL pipet (0354) to add 1.0 mL of PPK Reagent B (7343). Cap and
mix thoroughly.
5. Remove cap from test tube. Place tube in Low Range Comparator (1102) with
Polyphosphate Low Range Comparator Bar (7345-01). Fill a test tube (0844) to
the 10 mL line with sample water. Place in Low Range Comparator. match sample
to a color standard. Record as ppm phosphate.
6. If the test result is higher than the 15 ppm color standard, repeat the test on a
diluted sample:
A. Fill the three test tubes to either the 2.5 mL or the 5.0 mL line with sample
water.
B. Dilute all three tubes to 10 mL line with demineralized or polyphosphate-free
water.
C. Proceed with Steps 2-5 above.
D. If a 2.5 mL sample size was used, multiply the comparator reading by a factor
of 4 to obtain the test result in ppm PO
. If a 5.0 mL sample size was used,
4
multiply the comparator reading by a factor of 2.
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