DIN EN 17411:2021-01 Fertilizers - Determination of perchlorate in mineral fertilizers by liquid chromatography and tandem mass spectrometry detection (LC-MS/MS); German version EN 17411:2020
2021DIN EN 17411:2021-01 Fertilizers - Determination of perchlorate in mineral fertilizers by liquid chromatography and tandem mass spectrometry detection (LC-MS/MS); German version EN 17411:2020