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

Inorganic fertilizers - Determination of specific nutrients (Endorsed by Asociación Española de Normalización in May of 2022.)
Edition 2022-05-01

Inorganic fertilizers - Determination of specific nutrients
Edition 2022-05-18

Nuclear energy. Nuclear fuel technology. Determination of plutonium in nitric acid solutions by spectrophotometry
Edition 2019-01-31

Ambient air - Standard method for measurement of NO3-, SO42-, Cl-, NH4+, Na+, K+, Mg2+, Ca2+ in PM2,5 as deposited on filters
Edition 2017-07-21

Water quality. Determination of nitrogen. Method using oxidative digestion with peroxodisulfate
Edition 1998-07-15