LaMotte STH Series - Manual (Page 3)

Introduction
This instruction manual is designed for use with the LaMotte
STH Series of professional soil testing outfits. The basic Model
STH-4 Outfit (Code 5029) tests soil for pH, nitrate nitrogen,
phosphorus, and potassium. Intermediate STH outfits combine
these four tests with tests for other important plant nutrition
factors. The Model STH-14 Outfit (Code 5010-01) analyzes for
all of the factors listed above. This manual also includes special
instructions for testing nitrate, phosphorus, and potassium in
green plant tissues.
*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 using.
Note: Some reagents in this kit are dispensed with screw-cap
pipets that are packaged separately.
Place the screw-cap glass pipets (0341) on the following reagents:
5156 *Phosphorus Reagent #2
5101 *Aluminum Test Solution
5140 *Magnesium Test Solution #1
Place the screw-cap plastic pipets (0392) on the following
reagents:
5146 *Nitrate Reagent #1
5108PS *Calcium Test Solution
5151PS *Nitrite Nitrogen Reagent #1
5152PS *Nitrite Nitrogen Reagent #2
5153PS *Nitrite Nitrogen Reagent #3
5171 *Sulfate Test Solution
5116PS *Ferric Iron Test Solution
5103PS *Ammonia Nitrogen Test Solution
5145PS *Magnesium and Manganese Solution #2
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