Petroleum products - Determination of potassium in gasoline - Atomic absorption spectrometric method
Edition 2004-02-01

Water analysis - Determination of potassium and sodium by atomic absorption spectrometry
Edition 1997-05-01

Water analysis - Determination of potassium and sodium by flame emission spectrometry
Edition 1997-05-01

Oilseed meals - Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014)
Edition 2016-09-15

Solid biofuels - Determination of the water soluble chloride, sodium and potassium content (ISO 16995:2015)
Edition 2015-05-01

Fruit and vegetable juices - Determination of sodium, potassium, calcium and magnesium content by atomic absorption spectrophotometry (AAS)
Edition 1995

Characterization of sludges - Pre-treatment for the determination of extractable ammonia using 2 mol/l potassium chloride
Edition 2006-09-01

Jewellery and precious metals - Determination of silver - Potentiometry using potassium bromide (ISO 11427:2024)
Edition 2024-08-01

Fertilizers, soil conditioners and beneficial substances - Determination of ammonium citrate, disodium-EDTA soluble phosphorus and potassium by ICP-OES in inorganic fertilizers
Edition 2023-07