PARTS PER MILLION EQUIVALENCY CHART
NITROGEN
N4
80
N3
40
N2
20
N1
10
N0
0
PHOSPHORUS
P4
100
P3
50
P2
20
P1
10
P0
5
POTASH
K4
900
K3
600
K2
400
K1
200
K0
50
To Test Hydroponics: Double the parts per million for each
reading. Dilute the hydroponic solution with one part deionized
water before testing.
Luster Leaf Products, Inc. 2220 Techcourt Woodstock, IL 60098 815/337-5560 FAX 815/337-5567 800/327-4635 EMAIL [email protected]