EN 932-5-2012 en Tests for general properties of aggregates - Part 5 Common equipment and calibration (Incorporating corrigendum May 2014)《测试的一般属性聚合-第5部分 常见设备和校准》.pdf

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1、BSI Standards PublicationTests for general properties of aggregatesPart 5: Common equipment and calibrationBS EN 932-5:2012Incorporating corrigenda May 2014 and August 2014BS EN 932-5:2012National forewordThis British Standard is the UK implementation of EN 932-5:2012, incorporating corrigendum May

2、2014. It supersedes BS EN 932-5:2000 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/502, Aggregates.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all th

3、e necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 86991 4ICS 91.100.15Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Stand

4、ard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2012.Amendments/corrigenda issued since publicationDate Text affected31 August 2014 Implementation of CEN corrigendum May 2014: Key inserted for Figure A.131 August 2014 Implementation of CEN correction

5、notice 4 June 2014: updated Key in Figure A.1BRITISH STANDARDEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 932-5 February 2012 ICS 91.100.15 English Version Tests for general properties of aggregates - Part 5: Common equipment and calibration Essais pour dterminer les proprits gnrales des gra

6、nulats - Partie 5: Equipements communs et talonnagePrfverfahren fr allgemeine Eigenschaften von Gesteinskrnungen - Teil 5: Allgemeine Prfeinrichtungen und Kalibrierung This European Standard was approved by CEN on 30 December 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regula

7、tions which stipulate the conditions for giving this European Standard 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-CENELEC Management Centre or to any CEN member

8、. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN

9、 members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, S

10、pain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN

11、national Members. Ref. No. EN 932-5:2012: EIncorporating corrigendum May 20142 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .54 Common equipment 54.1 Tolerances 54.1.1 Manufacturing tolerances .54.1.2 Working tolerances64.2 Measuring instruments .64.2.1 General 64

12、.2.2 Balances and weights .64.2.3 Thermometers 74.2.4 Dimensional measurement instruments .74.2.5 Timers .84.2.6 Volumetric glassware 84.2.7 Density hydrometers .84.3 Other instruments 84.3.1 Ovens 84.3.2 Constant temperature bath .84.3.3 Test sieves and bar sieves .84.3.4 Moulds and drums .84.3.5 S

13、ieve shakers .94.3.6 Desiccators and desiccator cabinets 94.3.7 Bottle shakers and rollers .94.3.8 Heaters 94.3.9 Rotating machinery .94.3.10 Vibrating machinery 94.3.11 Pressure or vacuum 95 Calibration and checking 95.1 Calibration of reference standards and reference instruments 95.1.1 Laboratory

14、 reference standards .95.1.2 Specifications for reference standards and reference instruments 105.2 Calibration and checking of test equipment 115.2.1 Traceability 115.2.2 External and in-house calibration . 115.2.3 Calibration and checking of measuring instruments 125.2.4 Checking of other instrume

15、nts 146 Reagents 176.1 Distilled water 176.2 Chemical reagents 18Annex A (normative) Method for the performance check of sieves . 19Annex B (normative) Procedure for the manual checking of perforated plate test sieve openings 22B.1 Equipment for checking the openings of plate test sieves 22B.2 Calib

16、ration of sieve check gauges 22B.3 Test procedure 22Annex C (informative) Balance recommendation for various standard test methods 24Bibliography . 25BS EN 932-5:2012 EN 932-5:2012 (E)3 Foreword This document (EN 932-5:2012) has been prepared by Technical Committee CEN/TC 154 “Aggregates”, the secre

17、tariat of which is held by BSI. 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 August 2012, and conflicting national standards shall be withdrawn at the latest by August 2012. Attention is drawn

18、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. This document supersedes EN 932-5:1999. This standard forms part of a series of standards for general pro

19、perties of aggregates. Test methods for other properties of aggregates are covered by the following European Standards: EN 933, Tests for geometrical properties of aggregates; EN 1097, Tests for mechanical and physical properties of aggregates; EN 1367, Tests for thermal and weathering properties of

20、 aggregates; EN 1744, Tests for chemical properties of aggregates; EN 13179, Tests for filler aggregate used in bituminous mixtures. The other parts of EN 932, Tests for general properties of aggregates are: Part 1: Methods for sampling; Part 2: Methods for reducing laboratory samples; Part 3: Proce

21、dure and terminology for simplified petrographic description; Part 6: Definitions of repeatability and reproducibility. In the bibliography, reference is made to the International Organization for Legal Metrology (OIML) classification, which this standard has adopted for the purposes of establishing

22、 a frequency of calibration for balance weights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, F

23、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 932-5:2012 EN 932-5:2012 (E)4 1 Scope This European Standard specifies

24、general requirements for common equipment, calibration and checking procedures and reagents for the testing of the properties of aggregates. In the case of checking, other procedures than the ones described in this standard may be used provided that appropriate working relationships with the corresp

25、onding methods described in this standard have been established. In case of dispute, the checking methods described in this standard shall be used. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applicati

26、on. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 933-1, Tests for geometrical properties of aggregates Part 1: Determination of particle size distribution Sieving method EN 933-2, Te

27、sts for geometrical properties of aggregates Part 2: Determination of particle size distribution Test sieves, nominal size of apertures EN 933-3, Tests for geometrical properties of aggregates Part 3: Determination of particle shape Flakiness index EN 933-8, Tests for geometrical properties of aggre

28、gates Part 8: Assessment of fines Sand equivalent test EN ISO 3650, Geometrical product specifications (GPS) Length standards Gauge blocks (ISO 3650:1998) ISO 384, Laboratory glassware Principles of design and construction of volumetric glassware ISO 386, Liquid-in-glass laboratory thermometers Prin

29、ciples of design, construction and use ISO 649-1, Laboratory glassware Density hydrometers for general purposes Part 1: Specification ISO 3310-1, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth ISO 3310-2, Test sieves Technical requirements and testing Part 2:

30、Test sieves of perforated metal plate ISO 4788, Laboratory glassware Graduated measuring cylinders ISO 6353-2, Reagents for chemical analysis Part 2: Specifications - First series ISO 6353-3, Reagents for chemical analysis Part 3: Specifications Second series BS EN 932-5:2012 EN 932-5:2012 (E)5 3 Te

31、rms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 calibration operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corre

32、sponding indications with associated measurement uncertainties and, in a second step, uses this information to establish a relation for obtaining a measurement result from an indication. Note 1 to entry: A calibration may be expressed by a statement, calibration function, calibration diagram, calibr

33、ation curve, or calibration table. In some cases, it may consist of an additive or multiplicative correction of the indication with associated measurement uncertainty. Note 2 to entry: For more information, see VIM International vocabulary of basic and general terms in metrology (available on http:/

34、www.bipm.org/ ). 3.2 checking operation of assuring either: that the results of measurements of a property (such as length, mass, temperature or time) at selected values made by a measuring instrument, or a set of them, have not deviated from that which was measured when the equipment was last calib

35、rated within a pre-defined tolerance; or that a property (such as rotation speed, vibration frequency) of an item, or a set of items, of equipment complies with the relevant requirements for that equipment. 3.3 verification scale interval (e) for balances value, expressed in units of mass, used for

36、the classification and verification of a balance 3.4 actual scale interval (d) value, expressed as: the difference between the values corresponding to two consecutive scale marks, for analogue indication, or the difference between two consecutive indicated values, for digital indication. 3.5 toleran

37、ce maximum permissible deviation from the nominal value of a measurable characteristic Note 1 to entry: In the present standard, tolerances may be expressed either as an absolute quantity without sign or as a percentage of the nominal value of a measurable characteristic. 4 Common equipment 4.1 Tole

38、rances 4.1.1 Manufacturing tolerances NOTE By convention, the tolerances (or limits) indicated in the aggregate test standards are manufacturing tolerances (or limits), if not otherwise stated. BS EN 932-5:2012 EN 932-5:2012 (E)6 4.1.1.1 Linear dimensions Where a dimension is specified with manufact

39、uring tolerances or limits, it shall be an essential dimension. NOTE Dimensions stated without tolerances are given for guidance. 4.1.1.2 Mass Where mass is specified, the manufacturing tolerance shall be 1 % of the specified mass unless otherwise stated. 4.1.2 Working tolerances Working tolerances

40、apply to equipment (e.g. apparatus) after being subjected to wear in use, and shall be not more than twice the manufacturing tolerance unless otherwise specified. 4.2 Measuring instruments 4.2.1 General Measuring instruments shall have greater measurement accuracy than the corresponding tolerance de

41、fined in the test method. NOTE Unless stated otherwise, the measurement accuracy of the instrument used should be at least five times better than the corresponding tolerance. 4.2.2 Balances and weights Balances and weights shall be calibrated. Calibration and checking of balances and weights shall c

42、omply with 5.2.3.2 and 5.2.3.3 respectively. NOTE 1 Balances can incorporate an analogue or a digital display. The balance (and weights if required) selected for a weighing shall enable the mass to be determined to the accuracy required by the test method. If calibration determines that the balance

43、is not suitable for use across its full working range, it shall be labelled to show the upper and lower limits of usable capacity. NOTE 2 Examples of categories of balances are given in Table 1. Annex C relates these categories to most aggregate standard test methods. BS EN 932-5:2012 EN 932-5:2012

44、(E)7 Table 1 Examples of categories of balances, their accuracy classes and corresponding tolerances for intermediate checks Balance accuracy class Balance category Verification scale interval eActual scale interval d Tolerance for intermediate checks Minimum capacity Maximum capacity (g) (g) (g) (g

45、) (kg) I(special) 1 0,001 0,0001 a0,0005 0,01a- II (high) 2 0,01 0,001a0,003 0,02a1 3 0,1 0,01a0,03 0,5a10 4 1 0,1a0,3 5a100 III (medium) 5 1 1 2 20 10 6 2 2 4 40 20 7 200 200 400 4000 2000 NOTE This table is based on OIML (2006). aBalances fitted with an auxiliary indicating device. 4.2.3 Thermomet

46、ers Thermometers shall be selected as appropriate to the test method. Actual scale interval shall not be greater than half of the required accuracy. For liquid-in-glass thermometers the form of graduations shall be as specified in ISO 386. The calibration of thermometers shall comply with 5.2.3.4. 4

47、.2.4 Dimensional measurement instruments 4.2.4.1 Steel rules Steel rules shall have scale divisions at least every 1 mm and shall be checked in accordance with 5.2.3.5. 4.2.4.2 Callipers Digital, dial and vernier callipers for internal and external measurements shall have an actual scale interval of

48、 0,1 mm or better and shall be calibrated in accordance with 5.2.3.5. 4.2.4.3 Micrometers Micrometer measuring devices shall have an actual scale interval of 0,01 mm or better, or 0,002 mm or better, depending upon the accuracy specified in the test method. Calibration shall be in accordance with 5.

49、2.3.5. 4.2.4.4 Dial gauges Dial gauges shall have an actual scale interval of 0,01 mm or better, or 0,002 mm or better, depending upon the accuracy and range of scale required by the test method. Dial gauges shall be calibrated in accordance with 5.2.3.5. BS EN 932-5:2012 EN 932-5:2012 (E)8 4.2.5 Timers Timers shall be calibrated i