Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
Edition 2009-05-27

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
Edition 2009-10-28

Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
Edition 2010-07-07

Organic and organo-mineral fertilizers - Determination of the nitrogen content (Endorsed by Asociación Española de Normalización in May of 2022.)
Edition 2022-05-01

Inorganic fertilizers - Determination of cyanamide nitrogen
Edition 2023-08-23

Organic and organo-mineral fertilizers - Determination of the nitrogen content
Edition 2022-05-18

Standard Test Method for Anions in Caustic Soda and Caustic Potash (Sodium Hydroxide and Potassium Hydroxide) by Ion Chromatography
Edition 2016

Inorganic fertilizers - Determination of cyanamide nitrogen
Edition 2024-03-20

Standard Test Method for Analysis of Isotopic Composition of Uranium in Nuclear-Grade Fuel Material by Quadrupole Inductively Coupled Plasma-Mass Spectrometry
Edition 2019

Ambient air - Standard method for measurement of NO₃⁻, SO₄²⁻, Cl⁻, NH₄⁺, Na⁺, K⁺, Mg²⁺, Ca²⁺ in PM2,5 as deposited on filters
Edition 2018-02-28