1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 6106:2013Abrasive products Checkingthe grain size of superabrasivesBS ISO 6106:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO
2、6106:2013. Itsupersedes BS ISO 6106:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MTE/13, Grinding wheels, abrasive tools, paper andcloths, and powders.A list of organizations represented on this committee can beobtained on request to its secreta
3、ry.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 70618 9ICS 25.100.70Compliance with a British Standard cannot conf
4、er immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2013.Amendments issued since publicationDate Text affectedBS ISO 6106:2013 ISO 2013Abrasive products Checking the grain size of superabrasivesProduits a
5、brasifs Vrification de la dimension des grains de superabrasifsINTERNATIONAL STANDARDISO6106Third edition2013-04-15Reference numberISO 6106:2013(E)BS ISO 6106:2013ISO 6106:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All rights reserved. Unless otherwise specified, no p
6、art of this 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
7、body in the 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 6106:2013ISO 6106:2013(E) ISO 2013 All rights reserved iiiContents PageForeword iv1 Scope . 12 Nor
8、mative references 13 Terms and definitions . 14 Apparatus . 14.1 Sieving machine . 14.2 Sieves . 14.3 Sampling the batch 24.4 Balance . 24.5 Timer . 25 Test conditions . 36 Test sieving . 36.1 Sampling . 36.2 Preparation for sieving 36.3 Sieving procedure . 37 Evaluation 37.1 Weighing sieved fractio
9、ns 37.2 Calculation of results . 38 Designation and grading limits . 48.1 General . 48.2 Grain sizes . 48.3 Designation 49 Example showing the use of Table 2. 4Annex A (normative) Adaptors for 75 mm sieves . 7Bibliography 9BS ISO 6106:2013ISO 6106:2013(E)ForewordISO (the International Organization f
10、or 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 subject for which a technical committee has been established has th
11、e 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 (IEC) on all matters of electrotechnical standardization.Internati
12、onal Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication a
13、s an International Standard requires approval by at least 75 % of the member bodies casting a vote.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 any or all such patent rights.ISO
14、 6106 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 5, Grinding wheels and abrasives.This third edition cancels and replaces the second edition (ISO 6106:2005), which has been technically revised.Significant changes against the previous edition are the following:a) the
15、English title has been editorially improved;b) the requirements for the sampling techniques in 4.3 have been specified in more detail;c) there has been a minor technical change in the requirements for the sieving procedure in 6.3;d) an editorial error in Table 2 and Table 3 was corrected;e) in Table
16、 2, smaller grain designations, i.e. 39 and 33, have been included;f) in Table 3, larger grain designations, i.e. 302, 357 and 712, have been included;g) in Table 2, undersize limiting sieves have been changed for grain designations 46 and 54.iv ISO 2013 All rights reservedBS ISO 6106:2013INTERNATIO
17、NAL STANDARD ISO 6106:2013(E)Abrasive products Checking the grain size of superabrasives1 ScopeThis International Standard specifies a method for determining or checking the grain size of superabrasives (diamond or cubic boron nitride) as used for the manufacture of industrial products, such as grin
18、ding wheels and saws. It is applicable to grain size designations as defined in Tables 2 and 3.This International Standard describes the grain size designations, the size limits, the sieves for use in determining them and the procedure to be adopted for checking the grain size exclusive of any coati
19、ng.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any ame
20、ndments) applies.ISO 554, Standard atmospheres for conditioning and/or testing Specifications3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1grainproduct whose size is defined by sieving3.2grain sizedesignated on-size fraction located between th
21、e upper and a lower control sieve as specifiedNote 1 to entry: The grain may include oversize and undersize factors as specified.4 Apparatus4.1 Sieving machineThe test shall only be carried out with test-sieving machines giving reproducible and comparable results, e.g. test-sieving machines in accor
22、dance with ISO 9284.4.2 SievesElectroformed sieves with standard 200 mm or 75 mm diameter stainless frame nested sieves, half-height (nominal 25 mm) shall be used. A cover and pan are required. The precision electroformed sieves with square apertures, which shall be used in the size checking procedu
23、re described in this International Standard, shall have a supporting grid of 2,2 lines per centimetre bonded to the top surface of the sieve. Unless this is done, the superabrasive slides over the smooth top surface of the sieve and sieving efficiency is drastically reduced. It is the users responsi
24、bility to ensure continuous compliance of the test sieve to the aperture sizes which shall be in accordance with Table 1. ISO 2013 All rights reserved 1BS ISO 6106:2013ISO 6106:2013(E)Table 1 Aperture sizes and ruling lines of electroformed sievesAperture size Ruling line Aperture size Ruling linem
25、cm m cm1 830 4,97 227 30,31 530 5,8 213 30,31 280 6,5 197 35,81 080 7,9 181 35,8915 8,5 165 39,4850 9,2 151 43,7770 10,9 139 46,3710 11,8 127 49,2645 12,2 116 49,2600 13,4 107 59,1541 15,0 97 65,6505 15,7 90 65,6455 16,4 85 71,6425 17,9 75 78,7384 18,7 65 78,7360 20,3 57 87,5322 21,9 49 98,4302 24,6
26、 41 98,4271 26,2 32 98,4255 26,2 28 98,44.3 Sampling the batchAppropriate sampling techniques shall be used to ensure that the sample taken is representative of the batch tested.CAUTION Care should be taken not to pour or scoop sample the material without first ensuring that the material is thorough
27、ly blended. Sample splitters like riffling may be used for small samples, but this might not always be viable for very large batches as the entire would need to be riffled (numerous times) before the required sample size is obtained.4.4 BalanceA laboratory balance shall be used which has a precision
28、 of at least 0,01 g if using 200 mm sieves or at least 0,001 g if using 75 mm sieves.4.5 TimerA timer with an accuracy of 1 % in 15 min shall be used.2 ISO 2013 All rights reservedBS ISO 6106:2013ISO 6106:2013(E)5 Test conditionsThe test shall be performed under the following conditions:Temperature:
29、 23C 2CRelative humidity: 505in ac % %ccordance with ISO554. 6 Test sieving6.1 SamplingThe material under test should be blended and divided utilizing a sample splitter (4.3) so as to obtain a representative sample.The resulting sample shall be spread out on a pan and allowed to acclimatize at a rel
30、ative humidity and temperature as specified in Clause 5.The mass of the sample, measured with the precision specified in 4.4, shall fall within the required range indicated in Tables 2 and 3.6.2 Preparation for sievingAssemble the desired stack of sieves (4.2) in the order of aperture sizes, with th
31、e coarsest sieve on top and with a receiver pan on the bottom. Pour the test sample on to the top sieve and place a lid over it. Place the entire unit into the sieving machine (4.1). The sieve stack shall be free to rotate during the sieving cycle; otherwise, incomplete sieving and erratic results c
32、an occur. To facilitate rotation, maintain a clearance of 3 mm between the sieve stack lid and head yoke of the machine, and ensure that the receiver spring clip does not bind on the bottom pan.Adaptors for 75 mm sieves are specified in Annex A.6.3 Sieving procedureSet the timer (4.5) controlling th
33、e sieve shaker to 15 min and turn on the shaker. At the completion of the cycle, remove the stack of sieves from the shaker. Beginning with the top (coarsest) sieve, empty the portion of the superabrasive retained on to a clean piece of glossy paper or another appropriate container and tap the frame
34、 lightly to aid particle removal. This procedure should be repeated with each subsequent sieve, care being taken not to damage the sieves. Electroformed sieves should not require brushing, but should be cleaned periodically by ultrasonic methods.7 Evaluation7.1 Weighing sieved fractionsOversize, on-
35、size and undersize shall be weighed to the precision specified in 4.4.If the sum of the masses of all fractions is less than 99 % of the original mass, this procedure shall be repeated on a new sample.7.2 Calculation of resultsCalculate the percentage retained on each sieve and the pan, relative to
36、the cumulative final mass of the sample. ISO 2013 All rights reserved 3BS ISO 6106:2013ISO 6106:2013(E)8 Designation and grading limits8.1 GeneralThe standard grain size designation and allowable limits for each size of superabrasive labelled, designated or otherwise represented as complying with th
37、is International Standard are given in Tables 2 and 3 in accordance with Clauses 4 to 6.8.2 Grain sizesTables 2 and 3 present the ISO designations of the superabrasive grain sizes together with the allowable limits for the particle size distribution of each grain size. The numerical designation in T
38、ables 2 and 3 are based upon the requirements specified in Table 1.8.3 DesignationSuperabrasives conforming to this International Standard shall be designated bya) “Superabrasives”,b) reference to this International Standard, i.e. ISO 6106,c) the type of superabrasive, D (diamond) or B (cubic boron
39、nitride), andd) the ISO grain designation according to Table 2 or 3.EXAMPLE Superabrasive with D and grain size 151 is designated as follows:Superabrasive ISO 6106 - D 1519 Example showing the use of Table 2The following is an example of the use of this International Standard. Consider ISO size D 15
40、1. At least 99,9 % of superabrasive shall pass through the oversize limiting sieve, in this case, 227 m. All superabrasive may pass through the upper control sieve (in this case, the 165 m sieve), but not more than 7 % is permitted to be retained on it. It is permissible to have 100 % pass through t
41、he upper control sieve and remain on the lower control sieve (127 m), the requirement being that the grain passing through the upper control sieve, and retained on the lower control sieve shall be at least 90 %. No more than 7 % shall pass through the lower control sieve, and not more than 0,5 % is
42、permitted to pass through the undersize limiting sieve (90 m). As further clarification, if 100 % of a superabrasive claimed to be D 151 passes both the oversize limiting and upper control sieves, and 90 % is retained on the lower control sieve, the superabrasive shall be rejected because 10 % of th
43、e superabrasive passing through the lower nominal sieve exceeds the maximum 7 % allowed for this grain size.4 ISO 2013 All rights reservedBS ISO 6106:2013ISO 6106:2013(E)Table2 Narrow range grain sizesISOagrain designationEquivalentmeshsizesbTestmassaccording to 6.1Sieve through which 99,9% has to p
44、ass(over-size limiting sieve)Uppercon-trol sieveMax. on sieveLower con-trol sieveMin. on sieveMax. throughsieve0,5% max. through undersizelimitingsievefor 200mm sievesfor 75mm sievesggmm%m%m118116/1880 to 1209,6 to 14,51830128051010935710100118/201530108085060085120/2580 to 1209,6 to 14,512809155710
45、93550571125/30108077060042560130/3580 to 1209,6 to 14,5915645550593536050135/4080 to 1209,6 to 14,5770541542593530242640/4564545536025535645/5080 to 1209,6 to 14,5541384530293521330150/6045532225518125160/7080 to 1209,6 to 14,5384271521393515121370/8032222718112718180/10040 to 604,8 to 7,22711977151
46、907107151100/12022716512790126120/14019713910775107140/17040 to 604,8 to 7,21651168908886591170/20013997755776200/23020 to 302,4 to 3,611685654964230/2709775574154270/3258565124983123246325/4007557412839400/50020 to 302,4 to 3,66549153280152533500/60020 to 302,4 to 3,657411528801520aTo add D or B de
47、pending on the abrasive type (D for diamond) or(B for cubic boron nitride); see 8.3.bThese mesh size designations are not part of this International Standard. They are shown for easy reference only.The manufacturers of superabrasive grain shall ensure that the size distribution within any of their g
48、rain products is maintained at a reasonably consistent proportional degree. ISO 2013 All rights reserved 5BS ISO 6106:2013ISO 6106:2013(E)Table3 Wide range grain sizesISOagrain designationEquivalentmeshsizesaTestmassaccording to 6.1Sieve through which 99,9% has to pass(over-size limiting sieve)Upper
49、con-trol sieveMax. on sieveLower con-trol sieveMin. on sieveMax. throughsieve0,5% max. through undersizelimitingsievefor 200mm sievesfor 75mm sievesggmm%m%m118216/2080 to 1209,6 to 14,518301280585093560085220/30128091560042571225/35108077050536060230/4091564542530250235/4577054136025542740/5064545530221335745/6054138425518130250/7045532221315125260/80384271181127aSee Table2.6 ISO 2013 All rights reservedBS ISO 6106:2013ISO 6106:2013(E)Annex A (normative) Adaptors for 75 mm sievesA.1 GeneralWhere 75 mm sieves ar
