Fertilizers - Extraction of phosphorus soluble in 2 % citric acid

Standard published on 14.9.2011

Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C

Standard published on 14.9.2011

Fertilizers - Extraction of soluble phosphorus according to Petermann at ambient temperature

Standard published on 14.9.2011

Water quality - Determination of selected parameters by discrete analysis systems - Part 1: Ammonium, nitrate, nitrite, chloride, orthophosphate, sulfate and silicate with photometric detection (ISO 15923-1:2013)

Standard published on 26.2.2025

Fertilizers - Extraction of phosphorus soluble in Joulie´s alcaline ammonium citrate

Standard published on 14.9.2011

Fertilizers - Determination of the fineness of grinding of soft natural phosphates

Standard published on 18.1.2012

Fertilizers - Extraction of total sulfur present in various forms

Standard published on 18.1.2012

Fertilizers - Extraction of water soluble sulfur where the sulfur is in various forms

Standard published on 18.1.2012

Hygrothermal performance of buildings - Calculation and presentation of climatic data - Part 1: Monthly means of single meteorological elements (ISO 15927-1:2003)

Standard published on 26.4.2006

Hygrothermal performance of buildings - Calculation and presentation of climatic data - Part 2: Hourly data for design cooling load (ISO 15927-2:2009)

Standard published on 26.5.2010