ASTM E323-2009 9375 Standard Specification for Perforated-Plate Sieves for Testing Purposes《试验用板孔筛的标准规范》.pdf

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1、Designation: E323 09Standard Specification forPerforated-Plate Sieves for Testing Purposes1This standard is issued under the fixed designation E323; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numbe

2、r in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers perforated plate with eitherround

3、 or square apertures, normally mounted in a frame for useas sieves in precision testing in the classification of materialsaccording to designated nominal particle size. A method forchecking the accuracy of perforated sieve plates is included asinformation in Appendix X1.NOTE 1The perforated-plate si

4、eves covered by this specification areintended for general precision testing. Some industries may require morerestricted specifications for sieves for special testing purposes.NOTE 2For other types of sieves see Specifications E11 and E161.NOTE 3Complete instructions and procedures on the use of tes

5、t sievesare contained in ASTM STP 447, Manual on Test Sieving Methods. Thismanual also contains a list of all ASTM published standards on sieveanalysis procedures for specific materials or industries.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in par

6、entheses are mathemati-cal conversions to SI units that are provided for informationonly and are not considered standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-p

7、riate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E11 Specification for Woven Wire Test Sieve Cloth and TestSievesE161 Specification for Precision Electroformed Sieves2.2 Other Documents:Fed. Std. No.

8、123 Marking for Shipment (Civil Agencies)3MIL-STD-129 Marking for Shipment and Storage33. Perforated Sieve Plates3.1 Materials used in the manufacture of perforated sieveplates shall be steel, stainless steel, brass, bronze, or other rigidmaterial and shall not be painted, plated, or otherwise coate

9、d.The thickness of materials used for perforated sieves platesshall conform to the requirements of column (7) in Table 1, butmay vary within the limits shown in column (10).3.2 Round apertures shall be arranged with their centersnominally at the vertices of equilateral triangles as shown inFig. 1. T

10、he diameter of any aperture shall not vary from thenominal diameter given in columns (1) and (2) of Table 1 bymore than the maximum variation given in column (3). Thepreferred centers for round apertures shall be as given incolumn (4) of Table 1 but may vary within the range given incolumn (6).3.3 S

11、quare apertures shall be arranged in a staggered patternwith their midpoints nominally at the vertices of isoscelestriangles whose bases shall equal their heights or shall bearranged in line with their midpoints nominally at the verticesof squares as shown in Fig. 2. The midsection of any aperturesh

12、all not vary from the nominal midsection dimension given incolumns (1) and (2) of Table 1 by more than the maximumvariation given in column (3). The preferred centers for squareapertures shall be as given in column (4) of Table 1, but mayvary within the range given in column (6).NOTE 4The percentage

13、 of open area for square apertures is identicalfor both staggered and straight-line patterns.4. Sieve Plate Frames4.1 Standard frames for perforated-plate sieves with aper-tures 0.16 in. (4.00 mm) and larger shall be made of hardwoodor steel and shall be designed to hold 12.0-in. (304.8-mm),16.0-in.

14、 (406.4-mm), or 18.0-in. (457.2-mm) square sieveplates. The use of rectangular, circular, or other shaped framesof other dimensions is not precluded for special purposes.Frames shall have a maximum of a 0.5-in. (12.7-mm) flange onthe inside of all four sides for sealing the joint and formounting the

15、 sieve plates. Perforated sieve plates that aresquare or rectangular in shape shall have a maximum of 0.5-in.(12.7-mm) solid border on all four sides. Perforated sieveplates that are circular in shape may be furnished without solid1This specification is under the jurisdiction ofASTM Committee E29 on

16、 Particleand Spray Characterization and is the direct responsibility of Subcommittee E29.01on Sieves, Sieving Methods, and Screening Media.Current edition approved Nov. 1, 2009. Published December 2009. Originallyapproved in 1967. Last previous edition approved in 2004 as E323 80 (2004).DOI: 10.1520

17、/E0323-09.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Des

18、k, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5098.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.borders. The sides of the frame shall be a minimum of 2.0 in.(50.8 mm) and not over 4.0 in. (101.6 mm) in height.TABLE

19、 1 Nominal Dimensions, Permissible Variations, and Ranges for Perforated Plate in Standard SievesSieve Designation and Aperture SizeA MaximumVariation ofApertureSizeBCenters Plate ThicknessPreferredPermissibleRangeCPreferredPermissibleRangeStand-ardDAlternativeStand-ardAlter-nativeStand-ardAlternati

20、vemm in.Emm mm in.Emm mm in.EgageFmm(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)125 5 61.0 160 614 144 to 184 3.4 0.1345 10 2.5 to 4.0106 414 60.9 135 514 122 to 155 3.4 0.1345 10 2.5 to 4.0100G4 60.9 128 5 115 to 147 3.4 0.1345 10 2.5 to 4.090 312 60.8 111 438 100 to 128 2.7 0.1046 12 2.5 to 4.075 3 60

21、.7 95 334 86 to 109 2.7 0.1046 12 2.5 to 4.063 212 60.6 80 318 72 to 92 2.7 0.1046 12 2.5 to 4.053 218 60.6 68 258 61 to 78 2.7 0.1046 12 2.5 to 4.050G2 60.5 64 212 58 to 73 2.7 0.1046 12 2.5 to 4.045 134 60.5 57 214 51 to 65 1.9 0.0747 14 1.5 to 2.537.5 112 60.4 48 178 43 to 55 1.9 0.0747 14 1.5 to

22、 2.531.5 114 60.4 41 158 37 to 47 1.9 0.0747 14 1.5 to 2.526.5 1116 60.4 35 1516 31 to 40 1.9 0.0747 14 1.5 to 2.525.0G1 60.4 32 114 29 to 37 1.9 0.0747 14 1.5 to 2.522.478 60.3 29 118 26 to 33 1.9 0.0747 14 1.5 to 2.519.034 60.3 25 1 22 to 29 1.9 0.0747 14 1.5 to 2.516.058 60.27 211316 19 to 24 1.9

23、 0.0747 14 1.5 to 2.513.21732 60.25 1834 16 to 20 1.9 0.0747 14 1.0 to 2.012.5G 12 60.24 171116 15 to 20 1.9 0.0747 14 1.0 to 2.011.2716 60.23 1558 13 to 17 1.9 0.0747 14 1.0 to 2.09.538 60.20 13.012 11.3 to 14.9 1.9 0.0747 14 1.0 to 2.08.0516 60.19 11.0716 9.5 to 12.6 1.9 0.0747 14 1.0 to 2.06.7176

24、4 60.17 9.92564 8.3 to 11.4 1.5 0.0598 16 0.8 to 1.56.3G 14 60.16 9.538 8.0 to 10.9 1.5 0.0598 16 0.8 to 1.55.6732 60.15 8.71132 7.2 to 10.0 1.5 0.0598 16 0.8 to 1.54.75316 60.14 6.814 5.8 to 7.8 1.5 0.0598 16 0.8 to 1.54.00532 60.13 5.9732 5.0 to 6.8 1.5 0.0598 16 0.8 to 1.53.35 0.127(18) 60.12 4.9

25、316 4.2 to 5.7 1.5 0.0598 16 0.8 to 1.52.80764 60.11 4.41164 3.7 to 5.1 1.5 0.0598 16 0.8 to 1.52.36362 60.10 3.8532 3.2 to 4.4 1.5 0.0598 16 0.8 to 1.52.00 0.078 60.09 3.318 2.8 to 3.8 1.5 0.0598 16 0.8 to 1.51.70 0.066 60.08 2.9764 2.5 to 3.3 0.8 0.0299 22 0.4 to 0.81.40 0.055 60.08 2.6 0.100 2.2

26、to 3.0 0.8 0.0299 22 0.4 to 0.81.18 0.045 60.07 2.2 0.090 1.9 to 2.5 0.8 0.0299 22 0.4 to 0.81.00 0.039 60.07 2.0 0.077 1.7 to 2.3 0.8 0.0299 22 0.4 to 0.8AThe values shown in this table refer to both round and square apertures. In general, square-aperture perforated-sieve plates are available only

27、in 3.35 mm and larger.BThis permissible variation applies to both the standard aperture sizes and the alternative aperture sizes.CA range of 615 % is allowed except that in no case shall the minimum bridge (bar between apertures) be less than one half of the difference between the nominalaperture an

28、d the preferred center.DThese standard designations, progressing from a base of 1 mm in the ratio of approximately4=2 to 1, correspond to the values for test sieve apertures recommendedby the International Organization for Standardization, Geneva, Switzerland.EOnly approximately equivalent to the st

29、andard values.FThe gage values are for carbon steel. For other materials, the gage used should be the nearest decimal equivalent of the U.S. standard gage for steel.GThese sieves are not in the standard series but they have been included because they are in common usage.FIG. 1 Arrangement of Round A

30、perturesFIG. 2 Arrangement of Square AperturesE323 092NOTE 5The frame may be designed to nest with compatible frames ifso specified, but in general, perforated sieve plates are removable from theframe and one frame is used with a series of perforated sieve plates.4.2 Standard frames for perforated-p

31、late sieves with aper-tures smaller than 0.16 in. (4.00 mm) may be designed as in 4.1or may be the standard 8.0-in. (203.2-mm) circular sieve frameas described in Specification E11 for wire-cloth sieve frames.NOTE 6Care should be taken to install the sieve plate in the framewith the side on which th

32、e manufacturer has indicated the aperture sizeuppermost.5. Label Marking5.1 Each perforated sieve plate shall bear a label or bestamped with the aperture size expressed both in millimetresand inches. The manufacturer shall ensure that the marking isdone on the punch side of the sieve plate.5.2 Each

33、perforated-plate sieve with apertures smaller than0.16 in. (4.00 mm) that has the sieve plate permanently affixedin the frame may carry the size markings, expressed inmillimetres and inches, on the frame instead of on the sieveplate itself.6. Keywords6.1 opening; particle size; perforated plate siev

34、es; precisiontesting; seive analysis; sieve perforated plate; test sieveSUPPLEMENTARY REQUIREMENTSThe following sections shall be applicable when U.S. contractual matters are involved.S1. Responsibility for InspectionS1.1 Unless otherwise specified in the contract or purchaseorder, the producer is r

35、esponsible for the performance of allinspection and test requirements specified herein. Except asotherwise specified in the contract or order, the producer mayuse his own or any other suitable facilities for the performanceof the inspection and test requirements specified herein unlessdisapproved by

36、 the purchaser. The purchaser shall have theright to perform any of the inspections and tests set forth in thisspecification where such inspections are deemed necessary toensure that material conforms to prescribed requirements.S2. Government ProcurementS2.1 Unless otherwise specified in the contrac

37、t, the materialshall be packaged in accordance with the suppliers standardpractice which will be acceptable to the carrier at lowest rates.Containers and packing shall comply with the Uniform FreightClassification rules or National Motor Freight Classificationrules. Marking for shipment of such mate

38、rial shall be inaccordance with Fed. Std. No. 123 for civil agencies andMIL-STD-129 for military agencies.APPENDIXES(Nonmandatory Information)X1. METHOD OF CHECKING PERFORATED SIEVE PLATESX1.1 In principle, every aperture in a perforated sieve plateis eligible for inspection, so that the first test

39、is a careful andmethodical visual examination applied to each aperture andcenter. If obvious faults are found, the sieve plate is unaccept-able.X1.2 Check the dimensions of the apertures using anaccurate steel rule or other suitable means. The use ofcalibrated flat-plug gages or calibrated tapered-p

40、in gages isalso permitted. Since any perforated aperture has an inherenttaper, take care to make all measurements from the side of thesieve plate on which the manufacturer has indicated theaperture size. The apertures selected for measurements may beover any area of the sieve plate, but shall be tho

41、se lying alongtwo straight lines at least 4 in. (100 mm) in length and shallinclude at least ten apertures. In the case of round apertures,one of the straight lines selected shall follow a straight line ofapertures and the included angle between the two straight linesshall be 60. In the case of squa

42、re apertures, one of the straightlines selected shall follow a straight line of apertures and theincluded angle shall be 90 if the apertures are arranged withtheir midpoints at the vertices of squares, but shall be 63 26min if their midpoints are at the vertices of isosceles triangles.If the minimum

43、 number of apertures prescribed for checking isnot available along the two straight lines prescribed, check allapertures in the sieve plate.X1.3 At the same time that the aperture dimensions arechecked, also examine the center between each of the selectedapertures.X1.4 Check the thickness of the sie

44、ve plate using anyreliable procedure.E323 093X2. PRESENTATION OF DATAX2.1 Sieve tests should be presented in tabular or graphicalform in terms of the nominal aperture dimension and thepercentage by weight. For purposes of comparison, the cumu-late percentage undersize will be accepted as standard. T

45、hisdoes not preclude the representation of percentages on indi-vidual sieves provided the sieve interval is clearly specified asplus one sieve aperture and minus another or as between twosieve apertures. Graphical representation may include the useof logarithmic scales, probability paper, and so for

46、th, toemphasize specific characteristics of shape.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent right

47、s, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for r

48、evision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing y

49、ou shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also