G21 化肥、化学土壤调理剂 标准查询与下载



共找到 374 条与 化肥、化学土壤调理剂 相关的标准,共 25

本部分规定了烘箱干燥法、真空烘箱干燥法、干燥剂真空干燥法和卡尔•费休法测定进出口化肥中水分的方法。 本部分方法—适用于烘箱干燥法测定性能稳定不含结晶水的化学肥料,如钾肥(硫酸钾、氯化钾、硝酸钾),氮肥(硫酸铵和硝酸钠、氯化铵)和一部分磷肥(重过磷酸钙)等测定其水分含量; 本部分方法二适用于真空烘箱干燥法测定受热性能不太稳定的化学肥料,如尿素、复合肥、硝酸铵和石灰氮等测定其水分含量; 本部分方法三用于干燥剂真空干燥法测定受热性能极不稳定的化学肥料,如磷酸氢铵等测定其水分含量; 本部分方法四适用于用二氧六环萃取肥料中的游离水,之后用卡尔•费休试剂滴定的方法,测定肥料中游离水含量。

Test method of import and export fertilizers.Part 2:Determination of moisture

ICS
CCS
G21
发布
2011-09-09
实施
2012-04-01

Fertilizers - Extraction of phosphorus soluble in 2 % formic acid.

ICS
65.080
CCS
G21
发布
2011-08-01
实施
2011-08-20

Fertilizers - Determination of the sodium extracted by flame-emission spectrometry; German version CEN/TS 16199:2011

ICS
65.080
CCS
G21
发布
2011-08
实施

Fertilizers - Determination of magnesium by complexometry; German version CEN/TS 16198:2011

ICS
65.080
CCS
G21
发布
2011-08
实施

This document specifies the procedure for the extraction of phosphorus soluble in Joulie's alkaline ammonium citrate. The method is applicable to all the straight and compound phosphate fertilizers, in which the phosphate occurs in an alumino-calcic form.

Fertilizers - Extraction of phosphorus soluble in Joulie's alcaline ammonium citrate; German version EN 15923:2011

ICS
65.080
CCS
G21
发布
2011-08
实施

This document specifies the procedure for the extraction of phosphorus soluble in cold alkaline ammonium citrate. The method is applicable to disintegrated phosphates exclusively.

Fertilizers - Extraction of soluble phosphorus according to Petermann at ambient temperature; German version EN 15922:2011

ICS
65.080
CCS
G21
发布
2011-08
实施

Fertilizers - Manganimetric determination of extracted calcium following precipitation in the form of oxalate; German version CEN/TS 16196:2011

ICS
65.080
CCS
G21
发布
2011-08
实施

Fertilizers - Determination of chlorides in the absence of organic material; German version CEN/TS 16195:2011

ICS
65.080
CCS
G21
发布
2011-08
实施

Fertilizers - Determination of magnesium by atomic absorption spectrometry; German version CEN/TS 16197:2011

ICS
65.080
CCS
G21
发布
2011-08
实施

This Technical Specification specifies a method for the determination of magnesium in fertilizer extracts. 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

ICS
65.080
CCS
G21
发布
2011-07-31
实施
2011-07-31

This document specifies the procedure for the extraction of phosphorus soluble in Joulie’s alkaline ammonium citrate. The method is applicable to all the straight and compound phosphate fertilizers, in which the phosphate occurs in an alumino-calcic form.

Fertilizers. Extraction of phosphorus soluble in Joulie's alcaline ammonium citrate

ICS
65.080
CCS
G21
发布
2011-06-30
实施
2011-06-30

This Technical Specification 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.

Fertilizers. Determination of the sodium extracted by flame-emission spectrometry

ICS
65.080
CCS
G21
发布
2011-06-30
实施
2011-06-30

This Technical Specification specifies a method for the determination of chlorides in the absence of organic material. The method is applicable to all fertilizers which are free from organic material.

Fertilizers. Determination of chlorides in the absence of organic material

ICS
65.080
CCS
G21
发布
2011-06-30
实施
2011-06-30

This Technical Specification specifies a manganimetric method for the determination of the calcium content in fertilizer extracts. This method is applicable to EC fertilizers for which a declaration of the total and/or water-soluble calcium content is provided for in Regulation (EC) 2003/2003, Annex I.

Fertilizers. Manganimetric determination of extracted calcium following precipitation in the form of oxalate

ICS
65.080
CCS
G21
发布
2011-06-30
实施
2011-06-30

This Technical Specification specifies a method for the determination of the magnesium content in fertilizer extracts using atomic absorption spectrometry (AAS). This method is applicable to EC fertilizer extracts obtained according to CEN/TS 15960 and CEN/TS 15961, for which a declaration of the total magnesium and/or water soluble magnesium content is required, with the exceptions of the following fertilizers according to [4], Annex I D relating to secondary nutrients: ? type 4 (kieserite); ? type 5 (magnesium sulfate) and type 5.1 (magnesium sulfate solution); ? type 7 (kieserite with potassium sulfate) to which, method 8.8, applies. NOTE Method 8.8 is covered by CEN/TS 16198 (see Bibliography). The method applies to all fertilizer extracts containing elements in quantities that might interfere with the complexometric determination of magnesium.

Fertilizers. Determination of magnesium by atomic absorption spectrometry

ICS
65.080
CCS
G21
发布
2011-06-30
实施
2011-06-30

This document specifies the procedure for the determination of soluble phosphorus in alkaline ammonium citrate. The method is applicable exclusively to precipitated dehydrated dicalcium phosphate (CaHPO. 2HO).

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

ICS
65.080
CCS
G21
发布
2011-06-30
实施
2011-06-30

This European Standard specifies the procedure for the determination of phosphorus soluble in 2 % citric acid (20 g/l). The method is applicable only to types of basic slag (see [1], Annex I A).

Fertilizers. Extraction of phosphorus soluble in 2 % citric acid

ICS
65.080
CCS
G21
发布
2011-06-30
实施
2011-06-30

This document specifies the procedure for the determination of phosphorus soluble in 2 % formic acid (20 g per litre). The method is applicable to soft natural phosphates exclusively.

Fertilizers. Extraction of phosphorus soluble in 2 % formic acid

ICS
65.080
CCS
G21
发布
2011-06-30
实施
2011-06-30

This document specifies the procedure for the extraction of phosphorus soluble in cold alkaline ammonium citrate. The method is applicable for disintegrated phosphates exclusively.

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

ICS
65.080
CCS
G21
发布
2011-06-30
实施
2011-06-30

Fertilizers - Determination of 1H,1,2,4-triazole in urea and in fertilizers containing urea - Method using high-performance liquid chromatography (HPLC).

ICS
65.080
CCS
G21
发布
2011-06-01
实施
2011-06-04



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