1、DEUTSCHE NORM December 1998 DIN IS0 565 Test sieves Metal wire cloth, perforated metal plate and electroformed sheet - Nominal sizes of openings (IS0 565 : 1990) ICs 19.120 Descriptors: Analytical sieves, openings, sizes. Analysensiebe - Metalldrahtgewebe, Lochplatten und elektrogeformte Siebfolien
2、- Nennffnungsweiten (IS0 565 : 1990) This standard incorporates International Standard IS0 565 Test sieves - Metal wire cloth, perforated metal plate and electroformed sheet - Nominal sizes of openings. A comma is used as the decimal marker. National foreword This standard has been prepared by ISO/T
3、C 24. The responsible German body involved in its preparation was the Normenausschu Bauwesen (Building and Civil Engineering Standards Committee), Technical Committee Siebe, Siebung. The DIN Standards corresponding to the International Standards referred to in clause 2 and Annex A of the IS0 Standar
4、d are as follows: IS0 Standard DIN Standard IS0 3 DIN 323-1 IS0 497 DIN 323-1 IS0 2395 DIN IS0 2395 IS0 331 0-1 IS0 331 0-2 IS0 331 0-3 DIN IS0 331 0-1 DIN IS0 331 0-2 DIN IS0 331 0-3 National Annex NA Standard referred to (and not included in Normative reference and Annex A) DIN 323-1 Preferred num
5、bers and preferred number series - Basic, calculated and rounded values IS0 Standard comprises 5 pages. No part of this standard may be reproduced without the prior permission of Ref. No. DIN IS0 565 : 1998-12 IN Deutsches Institut fr Normung e. V., Berlin. leuth Verlag GmbH, D-i0772 Berlin, has the
6、 exclusive right of sale for German Standards (DIN-Normen). English price group 05 Sales No. 0405 04.99 Page 1 IS0 565 : 1990 Test sieves Metal wire cloth, perforated metal plate and electroformed sheet - Nominal sizes of openings Foreword IS0 (the International Organization for Standardization) is
7、a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represent
8、ed on that committee. International organizations, govern- mental and non-governmental, in liaison with ISO, also take part in the work. IS0 col la borates closely with the In ternat ion al Elect rotech ni ca I Commission (IEC) on all matters of electrotechnical standardization. Draft International
9、Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Interna- tional Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 565 was prepared by Technical Committee ISOITC 24, Sieves, sievi
10、ng and other sizing methods. This third edition cancels and replaces the second edition (IS0 565:1983), of which it constitutes a technical revision (see the In- trod uct ion). Annex A of this International Standard is for information only. Page 2 IS0 565 : 1990 R 2013 R?1 O R 4013 R 20 Introduction
11、 about 40 YO 1,40 about 25 ?h 1,25 about 19 Oh 1,19 about 12 Oh 1,12 When test sieves of electroformed sheet were incorporated in the sec- ond edition of IS0 565 which was published in 1983, the range of sizes of openings were extended down to 5 prn by introducing the values of the R?10 series, in a
12、ccordance with IS0 497, for all principal sizes from 32 pm and smaller. In the meantime it has been recognized that there is little call for some of the smaller sizes of openings in metal wire cloth and in electroformed sheet. It was agreed therefore to delete the supplementary sizes 28 prn and 22 p
13、rn and the principal sizes 12.5 pm, 8 pm and 6,3 pm from the tables of nominal sizes of openings. Apart from these omissions, the ratio of successive sizes in the series is as shown in table0.1. Table 0.1 I Series IS0 3 and IS0 497 I Step Ratio This International Standard will be further revised if
14、it becomes evident that one of the supplementary series given in table I and table 2. namely R 20 or R 40/3, has found sufficient general and worldwide recognition that it is no longer necessary to include both series. Requirements for test sieves, for example tolerances on sizes of openings and met
15、hods for verification, are given in IS0 3310-1, IS0 3310-2 and IS0 3310-3. 1 Scope This International Standard specifies the nominal sizes of openings for metal wire cloth, perforated metal plate and electroformed sheet as sieving me- dia in test sieves. It applies to - metal wire cloth with square
16、openings; - perforated metal plate and electroformed sheet with square or circular openings. Page 3 IS0 565 : 1990 4 Designation 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this International Standard. At the time o
17、f publi- cation, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this International Standard are encour- aged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and IS0 maintain
18、 registers of cur- rently valid International Standards, IS0 2395:1972, Test sieves and test sieving - Vo- cabulary. 3 Definitions For the purposes of this International Standard, the definitions given in IS0 2395 apply. 4.1 Sieving media in test sieves shall be desig- nated by the nominal size of t
19、he openings (central separation of opposite sides or diameter). For per- forated metal plate and electroformed sheet, the type of opening, square or circular (round), shall also be stated. 4.2 Sizes of openings of 1 mm and above shall be expressed in millimetres (mm); sizes of openings below 1 mm sh
20、all be expressed in micrometres (pm). 5 Nominal sizes of openings The nominal sizes of openings listed in table I and table 2 have the following ranges of application: a) for metal wire cloth: from 125 mm to 20 pm b) for perforated metal plate - with square holes: from 125 mm to 4 mm - with circular
21、 holes: from 125 mm to 1 mm c) for electroformed sheet with square or circular apertures: from 500 pm to 5 pm. It is recommended that the principal sizes be used where possible, but that if a series having smaller steps is required it should be drawn from only one of the supplementary series and not
22、 from both, .e. from either R 20 or R 40/3. Page 4 IS0 565 : 1990 Table 1 - Miiiimetre sizes Principal sizes R 2013 125 90 63 45 31,5 22.4 16 11,2 8 56 4 2,8 2 1,4 1 Supplementary sizes R 20 125 112 1 O0 90 80 71 63 56 50 45 40 35,5 31,5 28 25 22,4 20 18 16 14 12,5 11,2 10 9 8 7,1 6,3 5,6 5 4,5 4 3,
23、55 3,15 2,8 2,5 2,24 2 118 1,6 1,25 1,12 1 1,4 R 4013 125 i 06 90 75 63 53 45 37,5 31,5 26.5 22,4 19 16 13,2 11,2 9,5 8 6.7 5,6 4,75 4 3,35 2.8 2,36 2 1,7 1,4 1,18 1 Table 2 - Micrometre sires _ Princlpal sizes R 2013 710 500 355 250 180 125 90 63 45 RlO 32 25 20 16 10 5 Supplementary sizes R 20 900
24、 800 710 630 560 500 450 400 355 315 280 250 224 200 180 160 1 40 125 112 1 O0 90 80 71 63 56 50 45 40 36 R 4013 850 710 600 500 425 355 300 250 212 180 150 125 106 90 75 63 53 45 38 Page 5 IS0 565 : 1990 Annex A (i n fo r ma t ive) Bibliography I is0 3:1973, Preferred numbers - Series of 4 IS0 3310
25、-2:-) , Test sieves - Technical re- quirements and testing - Part 2: Test sieves of perforated metal plate. preferred n um bers. Z IS0 497:1973, Guide to the choice of series of preferred numbers and of series containing 5 IS0 3310-3:1990, Test sieves - Technical re- mare rounded values of preferred numbers. quirements and testing - Part 3: Test sieves of electroformed sheets. 3 IS0 3310-1:1990, Test sieves - Technical re- quirements and testing - Part 1: Test sieves of metal wire cloth. 1) To be published. (Revision of IS0 3310-2:1982.)
