LaMotte Greenhouse Soil Testing Outfit GS-01 - Manual (Page 7)

PHOS PHO RUS
QUANTITY CONTENTS CODE
60 mL *VM Phosphate Reagent *4410-H
30 mL *Reducing Reagent *6405-G
2 Pipets, 1.0 mL, plastic 0354
1 Pipet, plain 0352
2 Test Tubes, 5 mL, glass 0230
1 Phosphorus Comparator 5274
*WARNING: Reagents marked with a * are considered hazardous substances.
Material Safety Data Sheets (MSDS) are supplied for these reagents. For your
safety, read label and accompanying MSDS before proceeding.
PRO CE DURE
1.
Use a 1 mL pipet (0354) to add 1 mL of soil extract to a test tube
(0230). Dilute to 5 mL line with deionized water.
2. Use a second 1 mL pipet (0354) to add 1 mL of *VM Phosphate
Reagent (4410). Cap and mix. Wait 5 minutes.
3. Use the plain pipet (0352) to add 3 drops of *Reducing Reagent
(6405). Cap and invert to thoroughly mix contents.
4. Insert test tube into the Phosphorus Comparator (5274). Match
sample color to a color standard. Record as ppm Phosphorus.
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CON DUC TIV ITY
QUANTITY CONTENTS CODE
1 Test Chamber 0966
1 Conductivity Meter 26094-22C
Read the Conductivity Meter Instruction Manual before proceeding.
PRO CE DURE
1.
Fill plastic test chamber (0966) with soil extract.
2. Insert the conductivity probe.
3. Measure the conductivity. Multiply reading by 0.7. Record as ppm
Soluble Salts.
4. Remove probe and transfer extract to the probe column (0945) for
the pH test. Rinse probe and test chamber with deionized water.
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