LaMotte STH Outfit - Manual (Page 4)

4
Introduction
This instruction manual is designed for use with the LaMotte STH Series
of professional soil testing outfi ts. The basic Model STH-4 Outfi t (Code
5029) tests soil for pH, nitrate nitrogen, phosphorus, and potassium.
Intermediate STH outfi ts combine these four tests with tests for other
important plant nutrition factors (humus, calcium and magnesium). The
Model STH-14 Outfi t (Code 5010-01) analyzes for all of the factors
listed above, along with tests for ammonia nitrogen, manganese, aluminum,
nitrate nitrogen, sulfate chloride and ferric iron. This manual also includes
special instructions for testing nitrate, phosphorus, and potassium in green
plant tissues.
*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.
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
5171 *Sulfate Test Solution
5116PS *Ferric Iron Test Solution
5103PS *Ammonia Nitrogen Test Solution