共找到 288 条与 肥料与土壤调理剂 相关的标准,共 20 页
Fertilizers - Determination of trace elements - Determination of mercury by vapour generation (VG) after aqua regia dissolution; German version EN 16320:2013
Fertilizers - Determination of trace elements - Determination of arsenic by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution; German version EN 16317:2013
Soil improvers and growing media. Sampling
Soil improvers and growing media. Determination of a quantity
Solid fertilizers-Determination of mineral-acid-soluble sulfate content-Gravimetric method
Fertilizers. Determination of trace elements. Determination of chromiumVI by photometry method A and by ion chromatography with spectrophotometric detection method B
Fertilizers. Determination of trace elements. Determination of arsenic by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution
Fertilizers. Determination of trace elements. Determination of cadmium, chromium, lead and nickel by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution
Fertilizers. Determination of trace elements. Determination of mercury by vapour generation (VG) after aqua regia dissolution
Liming materials - Determination of the amount of residual finely ground carbonate in soils - Volumetric method; German version CEN/TS 16375:2013
Fertilizers - Determination of 3,4-dimethyl-1H-pyrazole phosphate (DMPP) - Method using high-performance liquid chromatography (HPLC)
Carbonate and silicate liming materials - Determination of reactivity - Potentiometric titration method with hydrochloric acid
Fertilizers.Determination of 3,4-dimethyl-1H-pyrazole phosphate (DMPP).Method using high-performance liquid chromatography (HPLC); German version EN 16328:2012
Fertilizers - Determination of the sodium extracted by flame-emission spectrometry
Fertilizers - Manganimetric determination of extracted calcium following precipitation in the form of oxalate
This European Standard specifies a method for the determination of the magnesium content in fertilizer extracts using atomic absorption spectrometry (AAS).
Fertilizers.Determination of magnesium by atomic absorption spectrometry; German version EN 16197:2012
This European Standard specifies a method for the determination of the sodium content in fertilizer extracts by flame-emission spectrometry. The method is applicable to EC fertilizers for which a declaration of the sodium content is provided for in Regulation (EC) Nr 2003/2003, Annex I [3].
Fertilizers.Determination of the sodium extracted by flame-emission spectrometry; German version EN 16199:2012
This European Standard specifies a method for the determination of magnesium in fertilizer extracts by complexometry. The method is applicable to the following EC fertilizer extracts for which the determination of total magnesium and/or water-soluble magnesium is provided for according to the Regulation (EC) No 2003/2003, Annex I [3]: -fertilizers listed in [3], Annex I: straight nitrogenous fertilizers, type 1b + 1c (calcium magnesium nitrate), type 7 (magnesium sulfonitrate), type 8 (nitrogenous fertilizers with magnesium) and straight potassic fertilizers, type 2 (enriched kainite), type 4 (potassium chloride containing magnesium), type 6 (potassium sulfate containing magnesium salt); -fertilizers listed in [3], Annex I D relating to secondary nutrients.
Fertilizers.Determination of magnesium by complexometry; German version EN 16198:2012
Fertilizers. Determination of magnesium by atomic absorption spectrometry
Fertilizers. Determination of chlorides in the absence of organic material
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