Reference
Method
Test
Reagent #
Reagent Name
EPA (SW-846)
Ammonium Acetate
Cation-Exchange Capacity of Soils
5.9.3
Boric Acid, 2% solution
EPA
Colorimetric; Titrimetric; Potentiometric
Nitrogen, Kjeldahl, Total
7.6
Boric Acid Solution
EPA
Colorimetric; Titrimetric; Potentiometric – Distillation Procedure
Nitrogen, Ammonia
6.4
Boric Acid Solution (20 g/L)
ASTM
Distillation Test Method
Ammonia Nitrogen
X1.2.2
Boric Acid Solution (20 g/L)
ASTM
Manual Digestion / Distillation
Total Kjeldahl Nitrogen
11.3
Boric Acid Solution (2%)
APHA
Preliminary Distillation Step
Nitrogen (Ammonia)
3f
Absorbent Solution, Plain Boric Acid
APHA
Semi-Micro-Kjeldahl Method
Nitrogen (Organic)
3
Absorbent Solution, Plain Boric Acid