ASTM E323-1980(2004) Standard Specification for Perforated-Plate Sieves for Testing Purposes《试验用板孔筛》.pdf

1、Designation: E 323 80 (Reapproved 2004)Standard Specification forPerforated-Plate Sieves for Testing Purposes1This standard is issued under the fixed designation E 323; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la

2、st revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 p

3、late with eitherround 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 1Th

4、e perforated-plate sieves 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 ASTM Specification E 11 andASTM Specification E 161, for Precision

5、Electroformed Sieves.2NOTE 3Complete instructions and procedures on the use of test 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 This standard

6、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-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM S

7、tandards:2E 11 Specification for Wire Cloth and Sieves for TestingPurposesE 161 Specification for Precision Electroformed Sieves2.2 Other Documents:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)3MIL-STD-129 Marking for Shipment and Storage33. Perforated Sieve Plates3.1 Materials used in the

8、 manufacture of perforated sieveplates shall be steel, stainless steel, brass, bronze, or other rigidmaterial and shall not be painted, plated, or otherwise coated.The thickness of materials used for perforated sieves platesshall conform to the requirements of column (7) in Table 1, butmay vary with

9、in 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. The diameter of any aperture shall not vary from thenominal diameter given in columns (1) and (2) of Table 1 bymore than the maximum variat

10、ion 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 Square apertures shall be arranged in a staggered patternwith their midpoints nominally at the vertices of isoscelestriangles whose bases

11、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 apertureshall not vary from the nominal midsection dimension given incolumns (1) and (2) of Table 1 by more than the maximumvariation given in colu

12、mn (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 of open area for square apertures is identicalfor both staggered and straight-line patterns.4. Sieve Plate Frames4.1 Standard frames for

13、 perforated-plate sieves with aper-tures 4.00 mm and larger shall be made of hardwood or steeland shall be designed to hold 12.0-in. (304.8-mm), 16.0-in.(406.4-mm), or 18.0-in. (457.2-mm) square sieve plates. Theuse of rectangular, circular, or other shaped frames of otherdimensions is not precluded

14、 for special purposes. Frames shallhave a maximum of a 0.5-in. (12.7-mm) flange on the inside ofall four sides for sealing the joint and for mounting the sieveplates. Perforated sieve plates that are square or rectangular inshape shall have a maximum of 0.5-in. (12.7-mm) solid borderon all four side

15、s. Perforated sieve plates which are circular inshape may be furnished without solid borders. The sides of the1This specification is under the jurisdiction of ASTM Committee E29 on Particleand Spray Characterization and is the direct responsibility of Subcommittee E29.01on Sieves, Sieving Methods, a

16、nd Screening Media.Current edition approved Oct. 1, 2004. Published November 2004. Originallyapproved in 1967. Last previous edition approved in 2001 as E 323 80 (2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annua

17、l Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5098.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Co

18、nshohocken, PA 19428-2959, United States.frame must be a minimum of 2.0 in. (50.8 mm) and not over4.0 in. (101.6 mm) in height.NOTE 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

19、 a series of perforated sieve plates.4.2 Standard frames for perforated-plate sieves with aper-tures smaller than 4.00 mm may be designed as above or maybe the standard 8.0-in. (203.2-mm) circular sieve frame asdescribed in Specification E 11 for wire-cloth sieve frames.NOTE 6Care should be taken to

20、 install the sieve plate in the framewith the side on which the manufacturer has indicated the aperture sizeuppermost.TABLE 1 Nominal Dimensions, Permissible Variations, and Ranges for Perforated Plate in Standard SievesSieve Designation and Aperture SizeA MaximumVariation ofApertureSizeBCenters Pla

21、te ThicknessPreferredPermissibleRangeCPreferredPermissibleRangeStand-ardDAlternativeStand-ardAlter-nativeStand-ardAlternativemm 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

22、.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 60.7 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

23、 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 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

24、 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 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

25、 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 2.06.71764 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 60.1

26、4 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 4.9316 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.

27、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 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 t

28、his table refer to both round and square apertures. In general, square-aperture perforated-sieve plates are available only 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 c

29、ase shall the minimum bridge (bar between apertures) be less than one half of the difference between the nominalaperture and 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 rec

30、ommendedby the International Organization for Standardization, Geneva, Switzerland.EOnly approximately equivalent to the standard 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 sieve

31、s are not in the standard series but they have been included because they are in common usage.FIG. 1 Arrangement of Round AperturesE 323 80 (2004)25. Label Marking5.1 Each perforated sieve plate shall bear a label or bestamped with the aperture size expressed both in millimetresand inches. The manuf

32、acturer shall ensure that the marking isdone on the punch side of the sieve plate.5.2 Each perforated-plate sieve with apertures smaller than4.00 mm, which has the sieve plate permanently affixed in theframe, may carry the size markings, expressed in millimetresand inches, on the frame instead of on

33、 the sieve plate itself.6. Keywords6.1 opening; particle size; perforated plate sieves; precisiontesting; seive analysis; sieve perforated plate; test sieveSUPPLEMENTARY REQUIREMENTSThe following sections shall be applicable when U.S. government contractual matters are involved.S1. Responsibility fo

34、r InspectionS1.1 Unless otherwise specified in the contract or purchaseorder, the producer is responsible 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 f

35、or the performanceof the inspection and test requirements specified herein, unlessdisapproved by 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

36、prescribed requirements.S2. Government ProcurementS2.1 Unless otherwise specified in the contract, 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 FreightClass

37、ification rules or National Motor Freight Classificationrules. Marking for shipment of such material 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 princip

38、le, every aperture in a perforated sieve plateis eligible for inspection, so that the first test 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

39、 steel rule or other suitable means. The use ofcalibrated flat-plug gages or calibrated tapered-pin 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.

40、 The apertures selected for measurements may beover any area of the sieve plate, but shall be those lying alongtwo straight lines at least 100 mm in length and shall includeat least ten apertures. In the case of round apertures, one of thestraight lines selected shall follow a straight line of apert

41、uresand the included angle between the two straight lines shall be60. In the case of square apertures, one of the straight linesselected 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

42、 be 63 26min if their midpoints are at the vertices of isosceles triangles.If the minimum 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 exa

43、mine the center between each of the selectedapertures.X1.4 Check the thickness of the sieve plate using anyreliable procedure.FIG. 2 Arrangement of Square AperturesE 323 80 (2004)3X2. PRESENTATION OF DATAX2.1 Sieve tests should be presented in tabular or graphicalform in terms of the nominal apertur

44、e dimension and thepercentage by weight. For purposes of comparison, the cumu-late percentage undersize will be accepted as standard. Thisdoes not preclude the representation of percentages on indi-vidual sieves, provided the sieve interval is clearly specified asplus one sieve aperture and minus an

45、other, or as between twosieve apertures. Graphical representation may include the useof logarithmic scales, probability paper, and so forth, toemphasize specific characteristics of shape.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any

46、 item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, 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

47、committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at

48、 a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you 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 D

49、rive, 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).E 323 80 (2004)4