1、June 2009DEUTSCHE NORM English price group 7No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 65.080!$WR“1529347www.din.
2、deDDIN EN 15704Liming materials Determination of the breakdown of granulated calcium andcalcium/magnesium carbonates under the influence of waterEnglish version of DIN EN 15704:2009-06Calcium-/Magnesium-Bodenverbesserungsmittel Bestimmung des Zerfalls von granulierten Calcium- und Calcium-/Magnesium
3、carbonatenunter WassereinwirkungEnglische Fassung DIN EN 15704:2009-06www.beuth.deDocument comprises 10 pagesDIN EN 15704:2009-06 2 National foreword This standard has been prepared by Technical Committee CEN/TC 260 “Fertilizers and liming materials” (Secretariat: DIN, Germany). The responsible Germ
4、an body involved in its preparation was the Normenausschuss Lebensmittel und landwirtschaftliche Produkte (Food and Agricultural Products Standards Committee), Technical Committee NA 057-03-02 AA Dngemittel. The method specified in this standard is based upon a method described by the Verband Deutsc
5、her Landwirtschaftlicher Untersuchungs- und Forschungsanstalten (VDLUFA) (Association of German Agricultural Experimental and Research Stations), see Bibliography 1. The DIN Standards corresponding to the International Standards referred to in this document are as follows, whereby EN ISO Standards a
6、re only listed below if these have not been published as DIN EN ISO Standards with the same number: ISO 3310-1 DIN ISO 3310-1 EN ISO 3696 DIN ISO 3696 ISO 5725-1 DIN ISO 5725-1 National Annex NA (informative) Bibliography DIN ISO 3310-1, Test sieves Technical requirements and testing Part 1: Test si
7、eves of metal wire cloth DIN ISO 3696, Water for analytical laboratory use Specification and test methods DIN ISO 5725-1, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15704 Decembe
8、r 2008 ICS 65.080 English Version Liming materials Determination of the breakdown of granulated calcium and calcium/magnesium carbonates under the influence of water Amendements minraux basiques Dtermination du dlitage leau de carbonates de calcium et carbonates de calcium/magnsium granuls Calcium-/
9、Magnesium-Bodenverbesserungsmittel Bestimmung des Zerfalls von granulierten Calcium- und Calcium-/Magnesiumcarbonaten unter Wassereinwirkung This European Standard was approved by CEN on 15 November 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the c
10、onditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in t
11、hree official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions. CEN members are the national standards bodies of
12、Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN CO
13、MMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15704:2008: EEN 15704:2008 (E) 2
14、Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle 4 5 Apparatus .5 6 Reagents .5 7 Procedure .5 8 Calculation 6 9 Precision .6 10 Test report 7 Bibliography 8 DIN EN 15704:2009-06 EN 15704:2008 (E) 3 Foreword This document (EN 15704:2008) has been pre
15、pared by Technical Committee CEN/TC 260 “Fertilizers and liming materials”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2009, and conflicting nati
16、onal standards shall be withdrawn at the latest by June 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CEN
17、ELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem
18、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15704:2009-06 EN 15704:2008 (E) 4 1 Scope This European Standard specifies a method for the determination of the break down of granulated calcium and calcium /m
19、agnesium carbonates under the influence of water. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including a
20、ny amendments) applies. EN 1482-2, Fertilizers and liming materials Sampling and sample preparation Part 2: Sample preparation EN 12048, Solid fertilizers and liming materials Determination of moisture content Gravimetric method by drying at (105+/-2) C (ISO 8190:1992 modified) EN 12944-1:1999, Fert
21、ilizers and liming materials Vocabulary Part 1: General terms EN 12944-2:1999, Fertilizers and liming materials Vocabulary Part 2: Terms relating to fertilizers EN 12944-3:2001, Fertilizers and liming materials Vocabulary Part 3: Terms relating to liming materials EN 12948, Liming materials Determin
22、ation of size distribution by dry and wet sieving EN ISO 3696:1995, Water for analytical laboratory use Specification and test methods (ISO 3696:1987) ISO 3310-1, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth 3 Terms and definitions For the purposes of this d
23、ocument, the terms and definitions given in EN 12944-1:1999, EN 12944-2:1999 and EN 12944-3:2001 apply. 4 Principle The sample is added to water. The mixture is stirred and then screened through a series of test sieves. NOTE The method is based upon a method described in the German Methods manual II
24、 (1985) 1. DIN EN 15704:2009-06 EN 15704:2008 (E) 5 5 Apparatus 5.1 Drying oven, capable of maintaining a temperature of 105 C 5 C; 5.2 Magnetic stirrer, with adjustable rotation, 600 rpm; 5.3 Magnetic stirring rod, 64 mm long ( 5 mm), with a central ring and a diameter of 8 mm ( 1 mm); 5.4 Test sie
25、ves, In accordance with ISO 3310-1 with apertures of 100 m and 315 m; NOTE Additional sieve sizes can be added to meet national regulations or the requirements of the consumers. 5.5 Glass beaker, Capacity 2 000 ml and with a diameter of approximately 130 mm and a height of 200 mm. 6 Reagents 6.1 Wat
26、er, conforming to EN ISO 3696:1995, grade 3. 7 Procedure 7.1 Sampling and sample preparation Sampling is not part of the method specified in this document. A recommended sampling method is given in EN 1482-1 2. Sample preparation shall be carried out in accordance with EN 1482-2. 7.2 Determination o
27、f the moisture content Determine the moisture content of the sample in accordance with EN 12048 and record the result as mass before drying (m1) and mass after drying (m2). 7.3 Breakdown of the granules in water Weigh about 100 g of the as received test sample (m3) to the nearest 0,1 g. Measure 1 00
28、0 ml of water (6.1) into the glass beaker (5.5). Add the magnetic stirrer rod (5.3) and start the magnetic stirrer (5.2). Adjust the magnetic stirrer to 600 rpm. Add the test portion into the outside area of the stirred water, and not into the middle vortex in the beaker. Stir for 10 min, maintainin
29、g the stirrer at 600 rpm. It is important that the magnetic stirrer avoids any milling action on the test portion. Assemble the sieves (5.4) with the largest aperture size on the top. Completely wash the contents of the beaker onto the top sieve. Wash the residues on each of the sieves in accordance
30、 with the wet sieving method described in EN 12948. Dry (5.1) the residue on each sieve separately at 105 C to a constant mass, and weigh to an accuracy of 0,1 g (m4) after cooling down. DIN EN 15704:2009-06 EN 15704:2008 (E) 6 8 Calculation The mass fraction passing through the respective sieve(s),
31、 wS in percent, is calculated according to the following Equation: 3241S100100mmmmw (1) where m1 is the mass in grams of the sample before drying, m2 is the mass in grams of the dried sample, m3 is the mass in grams of the test portion, m4 is the mass in grams of the dried residue remaining on the s
32、ieve(s). The mass of the dried residues (m4) on the sieves shall be used to express the test results in accordance with the requirements of National Fertilizer Regulations for liming materials. 9 Precision 9.1 Inter-laboratory test An inter-laboratory test has been carried out in 2006 with 12 partic
33、ipating laboratories. Repeatability and reproducibility were calculated according to ISO 5725-1:1994 3. The values derived from this inter-laboratory test may not be applicable to materials and sample matrices other than those given in Table 1. 9.2 Repeatability The absolute difference between two i
34、ndependent single test results, obtained with the same method on identical test material in the same laboratory by the same operator using the same equipment within a short interval of time, will not be more than 5 % of the cases exceed the values of r given in Table 1. 9.3 Reproducibility The absol
35、ute difference between two single test results, obtained with the same method on identical test material in different laboratories by different operators using different equipment, will not be more than 5 % of the cases exceed the values of R given in Table 1. DIN EN 15704:2009-06 EN 15704:2008 (E)
36、7 Table 1 Mean values, repeatability and reproducibility limits Material and fineness before granulation Particle size x % passing r R r % relative R % relative Dolomite 100 m 98,118 1,1551 1,5313 1,1773 1,5607 315 m 99,550 0,3341 2,3743 0,3357 2,3850 Chalk fine 100 m 86,943 1,4084 2,3110 1,6199 2,6
37、581 315 m 90,454 7,2218 6,4734 7,9840 7,1566 Chalk coarse 100 m 50,219 5,6911 20,7561 11,3325 41,3310 315 m 54,112 7,7781 24,6821 14,3742 45,6131 10 Test report The test report shall contain at least the following information: a) all data necessary for the complete identification of the sample; b) d
38、ate of the sampling and the sampling procedure (if known); c) reference to this European Standard; d) test results and the units in which the results have been expressed; e) confirmation of the sieve sizes used in the test; f) date of the completion of the test; g) all operating details not specifie
39、d in this document, or regarded as optional, together with details of any incidents occurred when performing the method which might have influenced the test result(s). DIN EN 15704:2009-06 EN 15704:2008 (E) 8 Bibliography 1 Methodenbuch Band II (1995): Die Untersuchung von Dngemitteln, 4. Auflage, V
40、erband Deutscher Landwirtschaftlicher Untersuchungs- und Forschungsanstalten (VDLUFA), Kapitel 6.6, Seiten 1-2: Bestimmung des Zerfalls von granulierten kohlensauren Kalken unter Feuchtigkeitseinfluss (Methods Manual II (1995): Analysis of Fertilizers, Association of German Agricultural Experimental
41、 and Research Stations, Chapter 6.6, Pages 1-2: Determination of the disaggregation of granulated calcium carbonates (CaCO3, granulated) under the influence of moisture) 2 EN 1482-1, Fertilizers and liming materials Sampling and sample preparation Part 1: Sampling 3 ISO 5725-1:1994, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions DIN EN 15704:2009-06
