90.20 Standard under periodical review Jul 15, 2026
ISO
ISO/TC 190/SC 3 Chemical and physical characterization
Technical Specification
13.080.10 Chemical characteristics of soils
Published
ISO/TS 14256-1:2003 describes a method for the determination of nitrate, nitrite and ammonium in a 1 mol/l potassium chloride extract of field-moist soil samples.
ISO/TS 14256-1:2003 is applicable to all types of soils homogenized by suitable methods.
PUBLISHED
ISO/TS 14256-1:2003
90.20
Standard under periodical review
Jul 15, 2026