1、BSI Standards PublicationTest sieves Technical requirements and testingPart 2: Test sieves of perforated metal plateBS ISO 3310-2:2013National forewordThis British Standard is the UK implementation of ISO 3310-2:2013. Itsupersedes BS 410-2:2000 which is withdrawn.The UK participation in its preparat
2、ion was entrusted to TechnicalCommittee LBI/37, Particle characterization including sieving.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible f
3、or its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 82112 7ICS 19.120Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and
4、 Strategy Committee on 31 August 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 3310-2:2013 ISO 2013Test sieves Technical requirements and testing Part 2: Test sieves of perforated metal plateTamis de contrle Exigences techniques et vrifications Partie 2:
5、 Tamis de contrle en tles mtalliques perforesINTERNATIONAL STANDARDISO3310-2Fifth edition2013-09-01Reference numberISO 3310-2:2013(E)BS ISO 3310-2:2013ISO 3310-2:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All rights reserved. Unless otherwise specified, no part of thi
6、s publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in th
7、e country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 3310-2:2013ISO 3310-2:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope
8、. 12 Normative references 13 Terms and definitions . 14 Designation 15 Perforated metal plate 15.1 Requirements . 15.2 Test methods . 55.3 Documentation for sieve conformity . 66 Test sieve frames 67 Marking of test sieves 7Annex A (informative) Test sieve record card . 8Bibliography 9BS ISO 3310-2:
9、2013ISO 3310-2:2013(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a
10、subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission
11、 (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should
12、be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying
13、 any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patents.Any trade name used in this document is information given for the convenience of user
14、s and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementar
15、y informationThe committee responsible for this document is ISO/TC 24, Particle characterization including sieving, Subcommittee SC 8, Test sieves, sieving and industrial screens.This fifth edition cancels and replaces the fourth edition (ISO 3310-2:1999), which has been technically revised.ISO 3310
16、 consists of the following parts, under the general title Test sieves Technical requirements and testing: Part 1: Test sieves of metal wire cloth Part 2: Test sieves of perforated metal plate Part 3: Test sieves of electroformed sheetsiv ISO 2013 All rights reservedBS ISO 3310-2:2013ISO 3310-2:2013(
17、E)IntroductionAs the accuracy of test sieving depends on the dimensional accuracy of the test sieve openings, it is considered necessary in this part of ISO 3310 to keep tolerances on the holes in perforated metal plate as close as possible as the manufacturing process allows.Requirements other than
18、 tolerances on the holes, such as requirements for the pitch of holes, any corner radii, and plate thickness, have not been limited more closely than necessary, since the influence of these criteria on test sieving is of minor importance, and excessively strict requirements may make manufacturing un
19、necessarily difficult. ISO 2013 All rights reserved vBS ISO 3310-2:2013Test sieves Technical requirements and testing Part 2: Test sieves of perforated metal plate1 ScopeThis part of ISO 3310 specifies the technical requirements and corresponding test methods for test sieves of perforated metal plat
20、e.It applies to test sieves having round holes, with sizes from 125 mm down to 1 mm, or square holes, with sizes from 125 mm down to 4 mm,in accordance with ISO 565.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable f
21、or its application. For dated references, only the edition cited applies. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 565, Test sieves Metal wire cloth, perforated metal plate and e
22、lectroformed sheet Nominal sizes of openingsISO 2395, Test sieves and test sieving Vocabulary3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 2395 apply.4 DesignationTest sieves of perforated metal plate shall be designated by the nominal size of the h
23、oles, expressed in millimetres, and by the shape of the holes.5 Perforated metal plate5.1 RequirementsThe tolerances on the individual size of holes and the selection of pitches shall be as specified in Table 1.5.1.1 Tolerances on individual size of holesThe tolerances on the individual size of hole
24、s as given in Table 1, Column 4, apply to the widths of the mid-sections of square holes and to the diameters of round holes.INTERNATIONAL STANDARD ISO 3310-2:2013(E) ISO 2013 All rights reserved 1BS ISO 3310-2:2013ISO 3310-2:2013(E)5.1.2 Pitch, p5.1.2.1 The pitches given in Table 1 apply to both ro
25、und and square holes.5.1.2.2 The nominal pitches given in Table 1, Column 5, are preferred.The nominal pitches should be within the limits of pmaxand pminas given in Table 1, Columns 6 and 7. These are defined by a permissible range of choice of approximately 15 % of the value calculated from the no
26、minal size of holes and the preferred pitch.Table 1 Tolerances on individual size of holes and selection of pitchesDimensions in millimetresNominal sizes of holes, w aTolerances on individual size of hole Pitch, pPrincipal sizes Supplementary sizes Preferred sizes Permissible range of choiceR 20/3 R
27、 20 R 40/3 pnompmaxpmin(1) (2) (3) (4) (5) (6) (7)125 125 125 1 160 184 143112 0,95 140 161 126106 0,9 132 152 119100 0,85 125 144 11390 90 90 0,8 112 129 10180 0,7 100 115 9075 0,7 95 109 8571 0,65 90 103 8163 63 63 0,6 80 92 7256 0,55 71 82 63,553 0,55 67 77 6050 0,55 63 72,5 56,545 45 45 0,5 56 6
28、4,5 50,540 0,45 50 57,5 4537,5 0,45 47,5 54,6 42,535,5 0,4 45 51,7 40,531,5 31,5 31,5 0,4 40 46 3628 0,35 35,5 40,8 31,826,5 0,35 33,5 38,5 3025 0,35 31,5 36 28,522,4 22,4 22,4 0,3 28 32,2 25,520 0,3 25 29 22,519 0,29 23,6 27,1 21,318 0,28 22,4 25,8 20,216 16 16 0,27 20 23 1814 0,26 18 20,7 1613,2 0
29、,25 17 19,5 15,112,5 0,24 16 18,4 14,3aIn accordance with ISO 565, the lower limit of the nominal size of square holes is 4 mm.2 ISO 2013 All rights reservedBS ISO 3310-2:2013ISO 3310-2:2013(E)Nominal sizes of holes, w aTolerances on individual size of hole Pitch, pPrincipal sizes Supplementary size
30、s Preferred sizes Permissible range of choiceR 20/3 R 20 R 40/3 pnompmaxpmin(1) (2) (3) (4) (5) (6) (7)11,2 11,2 11,2 0,23 14 16,1 12,610 0,21 12,6 14,5 11,39,5 0,21 12,1 13,8 10,29 0,2 11,6 13,3 9,88 8 8 0,19 10,4 12 9,27,1 0,18 9,4 10,8 86,7 0,17 8,9 10,2 7,56,3 0,17 8,5 9,8 7,25,6 5,6 5,6 0,15 7,
31、7 8,9 6,65 0,14 6,9 7,9 5,94,75 0,14 6,6 7,6 5,64,5 0,14 6,3 7,2 5,34 4 4 0,13 5,8 6,7 4,93,55 0,12 5,2 6 4,43,35 0,11 5 5,7 4,23,15 0,11 4,7 5,3 3,92,8 2,8 2,8 0,11 4,35 5 3,62,5 0,11 3,9 4,5 3,32,36 0,11 3,75 4,3 3,22,24 0,1 3,6 4,1 3,12 2 2 0,09 3,3 3,8 2,81,8 0,08 3,1 3,6 2,71,7 0,08 3 3,4 2,51,
32、6 0,08 2,75 3,2 2,31,4 1,4 1,4 0,08 2,6 3 2,21,25 0,08 2,45 2,9 2,11,18 0,07 2,4 2,7 21,12 0,07 2,22 2,5 1,81 1 1 0,07 2 2,3 1,7aIn accordance with ISO 565, the lower limit of the nominal size of square holes is 4 mm.5.1.3 Plate thicknessThe nominal thicknesses given in Table 2, Column 2, are prefer
33、red. The nominal thickness may, however, depart from these values within the permissible range of choice given in Table 2, Columns 3 and 4.Table 1 (continued) ISO 2013 All rights reserved 3BS ISO 3310-2:2013ISO 3310-2:2013(E)Table 2 Plate thicknessesDimensions in millimetresNominal sizes of holes wP
34、late thicknessPreferred thicknessPermissible range of choicemax. min.(1) (2) (3) (4)125 to 50 3 3,5 245 to 16 2 2,5 1,514 to 8 1,5 2 17,1 to 1,7 1 1,5 0,81,6 to 1,0 0,6 1 0,55.1.4 Arrangement of holesRound and square holes in perforated metal plates in test sieves (see Figure 1) shall be arranged in
35、 straight or staggered rows.Sieves with hole sizes 4 mm and above shall have an unperforated margin. Partial holes are not permitted (see Figure 2). The unperforated margin is influenced by the hole size, pitch, and manufacturing method, resulting in different margin widths.The corners of square hol
36、es may be rounded with a maximum permissible radius of rounding given by the formularwmax=015, (1)wherermaxis the maximum radius of rounding, in millimetres;w is the nominal size of the hole, in millimetres.a) Round holes b) Square holesFigure 1 Arrangement of square and round holes in test sieves5.
37、1.5 Material of platePlated steel is usually supplied. At the lower end of the aperture range, brass may be used. The purchaser should state specific requirements in the enquiry, such as stainless steel.4 ISO 2013 All rights reservedBS ISO 3310-2:2013ISO 3310-2:2013(E)5.2 Test methodsEvery hole in t
38、he perforated metal plate in a test sieve shall have the same probability of being inspected for compliance with the requirements listed in 5.1, Table 1, Column 4.Measure the hole sizes using appropriate equipment with a precision of reading of 20 m or 1/4 of the tolerance concerned (Table 1, Column
39、 4), whichever is greater.Test 1 Visual examination of general conditionView the perforated metal plate against a uniformly illuminated background. If obvious deviations from uniformity of appearance are found, for example partial holes (4 mm and larger), the sieve is unacceptable.Test 2 Measurement
40、 of size of hole and pitchMeasure the hole size on the centre lines of square holes and on the diameter of round holes according to Table 3.Table 3 Minimum number of holes to be measured in a 200 mm diameter test sieveNominal sizes of holes w mmProcess for compliance and inspectionProcess for calibr
41、ation(1) (2) (3)125 to 22,4All (max. 25 in larger sieves with diameter more than 200 mm)All (max. 50 in larger sieves with diameter more than 200 mm)20 to 4 2 15 2 303,55 to 2,24 2 20 2 402 to 1,6 2 25 2 501,4 to 1 2 40 2 80Measure the dimensions of the holes and the pitches, p, over any selected ar
42、ea of the plate, along two straight lines and different directions, each line being at least 150 mm in length and including at least eight holes in each direction.If the dimension of any hole exceeds the tolerance, the sieve is unacceptable.If the minimum number of holes prescribed for examination i
43、s not available in the plate, check all the holes in the sieve.Figure 2 Example of hole configuration for measurement of up to 20 holes ISO 2013 All rights reserved 5BS ISO 3310-2:2013ISO 3310-2:2013(E)5.3 Documentation for sieve conformity5.3.1 Test sieve record cardThe manufacturer may provide a r
44、ecord card (see Annex A) with each new sieve, confirming that it has been inspected by the procedures described in 5.2. This card can be used subsequently to record the results of periodic tests and performance checks.5.3.2 CertificatesAll certificates shall mention the manufacturers sieve serial nu
45、mber, date, and name or signature.5.3.2.1 Compliance certificateIf no specific request has been made, the manufacturer shall provide a certificate of compliance stating that the test sieve has been inspected in accordance with 5.2 and found to be in compliance with this part of ISO 3310. This certif
46、icate may be combined with the test sieve record card (see 5.3.1 and Annex A).5.3.2.2 Inspection certificateThe manufacturer may provide, at the specific request of the purchaser, a test sieve inspection certificate stating the test results for the average hole size. See Table 3, Column 2.5.3.2.3 Ca
47、libration certificateThe manufacturer may provide, at the specific request of the purchaser, a test sieve calibration certificate stating the results of their assessment. Results shall be stated for the number of holes measured, the average hole size, the plate thickness, and pitch. See Table 3, Col
48、umn 3.6 Test sieve framesIt is recommended that the 200 mm round metal frame be used as far as possible.Larger frames may be appropriate for larger quantities of material to be sieved and for hole sizes larger than 25 mm.The shape and size of the test sieve frame have little effect on the results of
49、 the sieving operation (see ISO 2591-1). Sieves complete with a lid and receiver in a set shall be assembled so that escape of sample during a test sieving operation is prevented.The frames shall be smoothly finished and they shall nest easily with other sieves, lids, and receivers of the same nominal frame size.The seal of the perforated metal plate with the frame shall be so constructed as to prevent lodging of material to be sieved (see Figure 3).The tolerances on test sieves o
