Standard Specification for Precision Electroformed Sieves

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1.1 This specification covers the requirements for design and construction of electroformed sieves. These sieves are used to perform particle-size distribution analysis and in preparing narrowly designated particle-size fractions. They may also be used as reference standards when suitably calibrated. A method of calibrating these sieves is included in the Annex.
Note 1--Complete instructions and procedures on the use and calibration of testing sieves are contained in ASTM Manual 32. This publication also contains a list of all published ASTM Standards on sieve analysis procedures for specific materials or industries.
1.2 The sieve analysis results from two testing sieves of the same sieve designation may not be the same because of the variances in sieve opening permitted by this specification. To minimize the differences in sieve analysis results, the use of testing sieves matched on a performance basis is suggested.
Note 2--For other types of sieves, see Specifications E11 and E323.
1.3 The values stated in SI units shall be considered standard for the dimensions of the electroformed mesh openings and the size of the wires in the electroformed mesh. The values stated in inch units shall be considered standard with regard to the sieve frames.

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ASTM E161-00 - Standard Specification for Precision Electroformed Sieves
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E 161 – 00
Standard Specification for
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Precision Electroformed Sieves
This standard is issued under the fixed designation E 161; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
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1. Scope and Electroformed Sheet-Nominal Aperture Sizes
1.1 This specification covers the requirements for design
3. Ordering Information
and construction of electroformed sieves. These sieves are used
3.1 Orders for items under this specification include the
to perform particle-size distribution analysis and in preparing
following information as necessary:
narrowly designated particle-size fractions. They may also be
3.1.1 Name of material (Electroformed Sieve),
used as reference standards when suitably calibrated. A method
3.1.2 ASTM designation and year of issue (ASTM
of calibrating these sieves is included in the Annex.
E 161 – XX),
NOTE 1—Complete instructions and procedures on the use and calibra-
3.1.3 Quantity of each item, and
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tion of testing sieves are contained in ASTM Manual 32 . This publication
3.1.4 Standard sieve designation (Table 1, Column 1).
also contains a list of all published ASTM Standards on sieve analysis
3.1.5 For testing sieves in standard circular frames:
procedures for specific materials or industries.
3.1.5.1 Nominal sieve frame diameter, and
1.2 The sieve analysis results from two testing sieves of the
3.1.5.2 Nominal sieve frame height.
same sieve designation may not be the same because of the
3.1.6 For sieve cloth not in frames or in non-standard
variances in sieve opening permitted by this specification. To
frames:
minimize the differences in sieve analysis results, the use of
3.1.6.1 Lateral dimension of sieve mesh, and
testing sieves matched on a performance basis is suggested.
3.1.6.2 Description of non-standard frame.
3.1.7 For sieves requiring supporting grid:
NOTE 2—For other types of sieves, see Specifications E 11 and E 323.
3.1.7.1 Support grid desired,
1.3 The values stated in SI units shall be considered
3.1.7.2 Support grid mounted up or down, and
standard for the dimensions of the electroformed mesh open-
3.1.8 Compatible sieve pans and covers.
ings and the size of the wires in the electroformed mesh. The
values stated in inch units shall be considered standard with
4. Sieve Sheet Requirements
regard to the sieve frames.
4.1 The material used in the manufacture of the sieve sheet
shall be nickel or a metal suitable for electrodeposition in a
2. Referenced Documents
firm crystalline structure. The sheet shall have square or round
2.1 ASTM Standards:
openings with straight uniform sides and smooth, flat surfaces
C 430 Test Method for Fineness of Hydraulic Cement by
except for a slight bevel along the edges of the openings. The
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the No. 325 (45μ m) Sieve
thickness of the sheet (exclusive of the supporting grid, see
E 11 Specification for Wire-Cloth Sieves for Testing Pur-
4.2), is governed by the method of manufacture, the size of the
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poses
openings and the width of material between openings, but in no
E 323 Specification for Perforated-Plate Sieves for Testing
case shall the thickness of material between the openings be
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Purposes
less than 10 μm (0.0004 in.).
2.2 ISO Standard:
4.2 If a supporting grid is required for durability, the sieve
ISO 565 Test sieves—Metal Wire Cloth, Perforated Plate
sheet shall be mounted to the supporting metal grid in such a
manner that the sheet is firmly bonded to the grid. The
supporting grid shall be of suitable thickness and strand width
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This specification is under the jurisdiction of ASTM Committee E29 on Particle
to provide adequate support to the sheet. The sheet shall be
and Spray Characterization and is the direct responsibility of subcommittee E29.01
mounted on the supporting grid with the openings running in
on Sieves, Sieving Methods and Screening Media.
the same direction as those of the supporting grid.
Current edition approved April 10, 2000. Published July 2000. Originally
4.3 The finished and mounted sieve sheet from which the
published as E 161 – 60. Last previous edition E 161 – 96.
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ASTM Manual 32, Manual on Test Sieving Methods, Available from ASTM,
sieves are constructed, shall conform to the requirements for
100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.
3
Annual Book of ASTM Standards, Vol 04.01.
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Annual Book of ASTM Standards, Vol 14.02.
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International Organization for Standardization, Geneva, Switzerland.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E 161
TABLE 1 Nominal
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