LaMotte Soil Test Kit 5679 - Manual (Page 6)

1 2 3
4 5
6 7 8
Potassium (Potash) Test
Fill test tube (0755)
to line 7 with
Potassium Extracting
Solution (5707)
Use 0.5g
spoon (0698)
to add four
(4) measures
of soil sample
to test tube.
Cap and shake
vigorously for
one minute.
Remove cap
and allow soil
to settle.
Use a clean pipet (0364) to
transfer the clear liquid to
a second clean test tube. Be
careful not to pull up any soil
into pipet. Fill second tube to
line 5 with liquid.
NOTE: If additional extract is
needed to fi ll the tube to line 5,
repeat steps 1 through 4.
Add one Potassium
Indicator Tablet
(5708A) to soil
extract in second
tube.
Cap and mix until
tablet dissolves.
A purplish color
will appear.
Add Potassium Test
Solution (5709),
two drops at a time,
keeping count. Mix
contents after each
addition. Stop adding
drops when the color
changes from purplish
to blue.