B10;G20 标准查询与下载

BS ISO 18642:2016 肥料和土壤调理剂. 肥料级尿素. 通用要求

Fertilizer and soil conditioners. Fertilizer grade urea. General requirements

ISO 25705:2016 肥料. 采用高效液相色谱法 (HPLC) 测定尿素固化物. 异丁叉双尿素和丁烯叉二脲 (方法A) 和次甲基尿素低聚物 (方法B)

This International Standard specifies methods for the determination of isobutylidene diurea (IBDU), Crotonylidene diurea (CDU) (method A) and methylene-urea oligomers (MU) (method B) in fertilizers using high-performance liquid chromatography (HPLC). The method is applicable to all fertilizers which do not contain interfering organic compounds.

Fertilizers - Determination of urea condensates using high-performance liquid chromatography (HPLC) - Isobutylidenediurea and crotonylidenediurea (method A) and methylen-urea oligomers (method B)

ISO 25475:2016 肥料. 氨态氮的测定

This International Standard specifies a method for the determination of the ammoniacal nitrogen content in fertilizers. The method is applicable to all nitrogenous fertilizers including compound fertilizers, in which nitrogen is found exclusively either in the form of ammonium salts or ammonium salts together with nitrates. This International Standard is not applicable to fertilizers containing urea, cyanamide or other organic nitrogenous compounds.

Fertilizers - Determination of ammoniacal nitrogen

DIN EN 16651:2015 肥料. 正丁基硫代磷酸三胺 (NBPT) 和正丙基硫代磷酸三胺 (NPPT) 的测定. 高效液相色谱法 (HPLC) 使用方法; 德文版本EN 16651-2015

Fertilizers - Determination of N-(n-Butyl)thiophosphoric acid triamide (NBPT) and N-(n-Propyl)thiophosphoric acid triamide (NPPT) - Method using high-performance liquid chromatography (HPLC); German version EN 16651:2015

BS EN 15558:2009 肥料.根据Ulsch测定氮含量和氨态氮含量

This European Standard specifies a method for the determination of nitrate and ammoniacal nitrogen with reduction according to Ulsch. The method is applicable to all nitrogenous fertilizers, including compound fertilizers, in which nitrogen is found exclusively in nitrate form, or in ammoniacal and nitrate form.

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch

BS EN 15476:2009 肥料.根据德瓦达法测定氮和氨态氮含量

This European Standard specifies a method for the determination of nitrate and ammoniacal nitrogen with reduction using Devarda alloy (modified for each of the variants a, b and c). The method is applicable to all nitrogenous fertilizers, including compound fertilizers, in which nitrogen is found exclusively in nitrate form or in ammoniacal and nitrate form.

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda

BS EN 15479:2009 肥料.尿素中缩二脲的分光光度测定法

This European Standard specifies a method for the determination of biuret in urea. The method is applicable to urea and urea-based fertilizers.

Fertilizers - Spectrophotometric determination of biuret in urea

BS EN 15478:2009 肥料.尿素中总氮的测定

This European Standard specifies a method for the determination of total nitrogen in urea. This method is applied exclusively to urea fertilizers which are nitrate free.

Fertilizers - Determination of total nitrogen in urea

BS EN 15475:2009 肥料.氨态氮的测定

This European Standard specifies a method for the determination of the ammoniacal nitrogen content in fertilizers. The method is applicable to all nitrogenous fertilizers including compound fertilizers, in which nitrogen is found exclusively either in the form of ammonium salts or ammonium salts together with nitrates. This European Standard is not applicable to fertilizers containing urea, cyanamide or other organic nitrogenous compounds.

Fertilizers — Determination of ammoniacal nitrogen

BS EN 15477:2009 肥料.水溶性钾含量的测定

This European Standard specifies a method for the determination of water-soluble potassium, which is applicable to all potassium fertilizers listed in Annex I of the Regulation (EC) No 2003/2003 [3].

Fertilizers - Determination of the water-soluble potassium content

BS EN 15704:2008 石灰处理材料.水影响下的颗粒状钙和碳酸钙/碳酸镁断裂的测定

This European Standard specifies a method for the determination of the break down of granulated calcium and calcium /magnesium carbonates under the influence of water.

Liming materials - Determination of the breakdown of granulated calcium and calcium/magnesium carbonates under the influence of water

BS DD CEN/TS 15452:2006 肥料.测定螯合剂.用反相色谱法测定o、p-EDDHA螯合铁

This Technical Specification specifies a method for the chromatographic determination of the amount of iron chelated by each of the individual isomers of the chelating agent ortho-para EDDHA (o,p-EDDHA) in fertilizers. The method allows the identification of this chelating agent and the determination of the water soluble fraction of iron chelated by this chelating agent. The method is not applicable for the determination of the amount of free chelating agent. NOTE 1 This method has been shown to be also suitable for the determination of the amount of iron chelated by each of the individual isomers of the chelating agent ortho-ortho EDDHA (o,o-EDDHA) in fertilizers. NOTE 2 o,o-EDDHA and o,p-EDDHA are abbreviations used in this standard for the sake of simplicity. For complete names see Annex C. NOTE 3 The substances o,o-EDDHA and o,p-EDDHA both exist as different stereoisomers. For o,o-EDDHA a meso form and a d/l pair (the racemic isomers) exist, for o,p-EDDHA two different d/l pairs exist. All four stereoisomers are observed separately in this method. NOTE 4 Presently, an analytically pure standard only exists for o,o-EDDHA. The method for o,p-EDDHA has been developed with an o,p-EDDHA standard containing an uncertain concentration of o,p-EDDHA.

Fertilizers - Determination of chelating agents -Determination of iron chelated by o,p-EDDHA by reversed phase HPLC

BS DD CEN/TS 15478:2006 肥料.测定尿中氮含量

This Technical Specification specifies a method for the determination of total nitrogen in urea. This method is applied exclusively to urea fertilizers which are nitrate free.

Fertilizers - Determination of total nitrogen in urea

BS DD CEN/TS 15084:2006 石灰材料.测定石灰含量指南

Liming materials - Guide to the determination of the lime requirement

BS DD CEN/TS 15451:2006 肥料.测定螯合剂.用反相离子对色谱法测定EDDHA螯合铁物

This Technical Specification specifies a method for the chromatographic determination of the total amount of iron chelated by EDDHSA in commercial products.

Fertilizers - Determination of chelating agents - Determination of iron chelated by EDDHSA by ion pair chromatography

BS EN 1482:1996 固体肥料和石灰材料取样

This European Standard describes and/or specifies sampling plans, methods of sampling, methods for the reduction and division of samples, and sets out the requirements for sampling reports. This European Standard is applicable to deliveries of fertilizer or liming material supplied to third parties for resale under their own responsibility in smaller lots each of which would be subject to local, national or regional legislation. It is not intended to and does not override any statutory control methods which have to be followed when samples are taken by control authorities. The techniques and methods given in this European Standard apply to all solid fertilizers and liming materials in packages up to and including 50 kg in mass, and in bulk, provided the product is being moved Static heaps of product are not included. Product in Intermediate Bulk Containers holding up to 1000 kg may be treated either as packages or as bulk. NOTE. The term fertilizer is used throughout the body of this Standard and should be taken to include liming materials unless otherwise indicated. This European Standard does not cover complete, statistical sampling plans.

Sampling of solid fertilizers and liming materials

BS 5551 Sec.2.9:1991 肥料.第2部分:取样.第9节:大量供给的肥料评定用取样方案

Fertilizers. Sampling. Sampling plan for the evaluation of a large delivery of solid fertilizer

NF U42-245*NF ISO 6598:1987 肥料.磷含量测定.磷钼酸喹啉重量法

Fertilizers - Determination of phosphorus content - Quinoline phosphomolybdate gravimetric method.

NF U42-241:1969 肥料.全部磷酸酐的溶解

FERTILIZERS. DISSOLVING OF TOTAL PHOSPHORIC ANHYDRIDE.