1、BS EN 15704:2008ICS 65.080NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDLiming materials Determinationof the breakdownof granulatedcalcium and calcium/magnesium carbonatesunder the influence ofwaterLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2
2、009 08:05, Uncontrolled Copy, (c) BSIThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 January2009 BSI 2009ISBN 978 0 580 58989 8Amendments/corrigenda issued since publicationDate CommentsBS EN 15704:2008National forewordThis British Standard is
3、 the UK implementation of EN 15704:2008.The UK participation in its preparation was entrusted to TechnicalCommittee CII/37, Fertilisers and related chemicals.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include
4、all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Copy, (c) BSIBS EN 15704:2008EUROPEAN STA
5、NDARDNORME EUROPENNEEUROPISCHE NORMEN 15704December 2008ICS 65.080English VersionLiming materials - Determination of the breakdown of granulatedcalcium and calcium/magnesium carbonates under the influenceof waterAmendements minraux basiques - Dtermination dudlitage leau de carbonates de calcium et c
6、arbonates decalcium/magnsium granulsCalcium-/Magnesium-Bodenverbesserungsmittel -Bestimmung des Zerfalls von granulierten Calcium- undCalcium-/Magnesiumcarbonaten unter WassereinwirkungThis European Standard was approved by CEN on 15 November 2008.CEN members are bound to comply with the CEN/CENELEC
7、 Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN
8、member.This European Standard exists in three 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 membe
9、rs are the national standards bodies of 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, Swi
10、tzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN
11、 15704:2008: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Copy, (c) BSIBS EN 15704:2008EN 15704:2008 (E) 2 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 Calc
12、ulation 6 9 Precision .6 10 Test report 7 Bibliography 8 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Copy, (c) BSIBS EN 15704:2008EN 15704:2008 (E) 3 Foreword This document (EN 15704:2008) has been prepared by Technical Committee CEN/TC 260 “Fertilizers and
13、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 national standards shall be withdrawn at the latest by June 2
14、009. 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/CENELEC Internal Regulations, the national standards organiz
15、ations 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roma
16、nia, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Copy, (c) BSIBS EN 15704:2008EN 15704:2008 (E) 4 1 Scope This European Standard specifies a method for the determination of the break down
17、 of granulated calcium and calcium /magnesium 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
18、 the referenced document (including any 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
19、:1992 modified) EN 12944-1:1999, Fertilizers 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 material
20、s EN 12948, Liming materials Determination 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 d
21、efinitions For the purposes of this document, 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 desc
22、ribed in the German Methods manual II (1985) 1. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Copy, (c) BSIBS EN 15704:2008EN 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
23、 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 sieves, 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 co
24、nsumers. 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 Water, 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
25、 sampling method is given in EN 1482-1 2. Sample preparation shall be carried out in accordance with EN 1482-2. 7.2 Determination of 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 (m
26、2). 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 1 000 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
27、 test portion into the outside area of the stirred water, and not into the middle vortex in the beaker. Stir for 10 min, maintaining 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 si
28、ze on the top. Completely wash the contents of the beaker onto the top sieve. Wash the residues on each of the sieves in accordance 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) af
29、ter cooling down. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Copy, (c) BSIBS EN 15704:2008EN 15704:2008 (E) 6 8 Calculation The mass fraction passing through the respective sieve(s), wS in percent, is calculated according to the following Equation: 3241S 10
30、0100 mm mmw (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 sieve(s). The mass of the dried residues (m4) on the sieves shall be used
31、 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 participating laboratories. Repeatability and reproducibility were calculated
32、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 independent single test results, obtained with the same method on identic
33、al 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 absolute difference between two single test results, obtained with the same m
34、ethod 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. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Copy, (c) BSIBS EN 15704:
35、2008EN 15704:2008 (E) 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,
36、4084 2,3110 1,6199 2,6581 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 identificati
37、on of the sample; b) date 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 operatin
38、g details not specified 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). Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Copy, (c) BSIBS EN 15704
39、:2008EN 15704:2008 (E) 8 Bibliography 1 Methodenbuch Band II (1995): Die Untersuchung von Dngemitteln, 4. Auflage, Verband Deutscher Landwirtschaftlicher Untersuchungs- und Forschungsanstalten (VDLUFA), Kapitel 6.6, Seiten 1-2: Bestimmung des Zerfalls von granulierten kohlensauren Kalken unter Feuch
40、tigkeitseinfluss (Methods Manual II (1995): Analysis of Fertilizers, Association of German Agricultural Experimental 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, F
41、ertilizers 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 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Co
42、py, (c) BSIBS EN 15704:2008This page has been intentionally left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/05/2009 08:05, Uncontrolled Copy, (c) BSIBS EN15704:2008BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British S
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