ASTM E276-21

Standard Test Method for Particle Size or Screen Analysis at 4.75 mm (No. 4) Sieve and Finer for Metal-Bearing Ores and Related Materials

SIGNIFICANCE AND USE
5.1 This test method is intended to be used for compliance with compositional specifications for particle size distribution. It is assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Follow appropriate quality control practices such as those described in Guide E882.
SCOPE
1.1 This test method covers the determination of the particle size distribution by screen analysis, dry or wet, of metal-bearing ores and related materials at 4.75 mm (No. 4) sieve and finer.  
1.2 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 14-Nov-2021
• ICS: 19.120 - Particle size analysis. Sieving
• Technical Committee: E01 - Analytical Chemistry for Metals, Ores, and Related Materials
• Drafting Committee: E01.02 - Ores, Concentrates, and Related Metallurgical Materials

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E276 − 21
Standard Test Method for
Particle Size or Screen Analysis at 4.75 mm (No. 4) Sieve
1
and Finer for Metal-Bearing Ores and Related Materials
This standard is issued under the fixed designation E276; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 Thistestmethodcoversthedeterminationoftheparticle
3.1 Definitions:
size distribution by screen analysis, dry or wet, of metal-
3.1.1 For definitions of terms used in this test method, refer
bearingoresandrelatedmaterialsat4.75mm(No.4)sieveand
to Terminology E135.
finer.
4. Summary of Test Method
1.2 Units—The values stated in SI units are to be regarded
as standard. The values given in parentheses after SI units are
4.1 The sample is passed through a bank of sieves by
provided for information only and are not considered standard.
agitation. The dry screening technique described in this test
method may be used on any solid particles that can be dried so
1.3 This standard does not purport to address all of the
thatsieveblindingdoesnotoccur.Thewetscreeningtechnique
safety concerns, if any, associated with its use. It is the
using liquid media may be used on any insoluble solids.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. 5. Significance and Use
1.4 This international standard was developed in accor-
5.1 This test method is intended to be used for compliance
dance with internationally recognized principles on standard-
with compositional specifications for particle size distribution.
ization established in the Decision on Principles for the
It is assumed that all who use this procedure will be trained
Development of International Standards, Guides and Recom-
analysts capable of performing common laboratory practices
mendations issued by the World Trade Organization Technical
skillfully and safely. It is expected that work will be performed
Barriers to Trade (TBT) Committee.
in a properly equipped laboratory and that proper waste
disposal procedures will be followed. Follow appropriate
2. Referenced Documents
quality control practices such as those described in Guide
2
E882.
2.1 ASTM Standards:
E11 Specification for Woven Wire Test Sieve Cloth and Test
6. Apparatus and Materials
Sieves
E29 Practice for Using Significant Digits in Test Data to
6.1 Brass and Fiber Bristle Brushes, for cleaning sieves and
Determine Conformance with Specifications
pans.
E135 Terminology Relating to Analytical Chemistry for
6.2 Drying Oven, of appropriate size and capable of main-
Metals, Ores, and Related Materials
taining a uniform temperature at 110 °C 6 5 °C.
E882 Guide for Accountability and Quality Control in the
Chemical Analysis Laboratory
6.3 Mechanical Sieve Shaker.
6.4 Pans, for holding samples.
1
6.5 Sample Splitter or Riffle with 25.4 mm (1 in.) opening.
This test method is under the jurisdiction of ASTM Committee E01 on
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
6.6 Scales and Weights, of adequate accuracy.
responsibility of Subcommittee E01.02 on Ores, Concentrates, and Related Metal-
lurgical Materials.
6.7 Special Apparatus, for wet screening, including deep-
Current edition approved Nov. 15, 2021. Published December 2021. Originally
approved in 1965. Last previous edition approved in 2013 as E276 – 13. DOI: frame sieves.
10.1520/E0276-21.
2
6.8 U.S. Standard Sieves, conforming to the requirements of
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Specification E11.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.9 Water or other liquid, for wet screening.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E276 − 21
7. Sample Preparation 10.1.4 Weighing—Remove the clamp and cover. Transfer
the contents of each sieve to a tared pan, tapping and brushing
7.1 If necessary, reduce the sample by riffling or other
the sieves to remove any lodged particles. Record the mass of
suitablemeanstoobtainatestsamplethatwillnotoverloadthe
each sieve fraction.
sieves, and dry at 110 °C 6 5 °C to constant mass. Constant
10.1.4.1 Weigh and re
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E276 − 13 E276 − 21
Standard Test Method for
Particle Size or Screen Analysis at No. 4 (4.75-mm) 4.75 mm
(No. 4) Sieve and Finer for Metal-Bearing Ores and Related
1
Materials
This standard is issued under the fixed designation E276; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the determination of the particle size distribution by screen analysis, dry or wet, of metal-bearing ores
and related materials at No. 4 (4.75-mm) 4.75 mm (No. 4) sieve and finer.
1.2 Units—The values stated in inch-poundSI units are to be regarded as standard. The SI values given in parentheses after SI units
are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminology E135.
1
This test method is under the jurisdiction of ASTM Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
Current edition approved Oct. 1, 2013Nov. 15, 2021. Published November 2013December 2021. Originally approved in 1965. Last previous edition approved in 20082013
ε1
as E276 – 03 (2008)E276 – 13. . DOI: 10.1520/E0276-13.10.1520/E0276-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E276 − 21
4. Summary of Test Method
4.1 The sample is passed through a bank of standard sieves by agitation. The dry screening technique described in this test method
may be used on any solid particles that can be dried so that sieve blinding does not occur. The wet screening technique using liquid
media may be used on any insoluble solids.
5. Significance and Use
5.1 This test method is intended to be used for compliance with compositional specifications for particle size distribution. It is
assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices skillfully and
safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will
be followed. Follow appropriate quality control practices such as those described in Guide E882.
6. Apparatus and Materials
6.1 U.S. Standard Sieves, Brass and Fiber Bristle Brushes, conforming to the requirements of Specification for cleaning sieves
and pans.E11.
6.2 Mechanical Sieve Shaker.
6.2 Drying Oven, of appropriate size and capable of maintaining a uniform temperature at 110 °C 6 5 °C.110 °C 6 5 °C.
6.3 Mechanical Sieve Shaker.
6.4 Pans, for holding samples.
6.5 Sample Splitter or Riffle with 1-in. (25.4-mm)25.4 mm (1 in.) opening.
6.6 Scales and Weights, of adequate accuracy.
6.6 Pans, for holding samples.
6.7 Brass and Fiber Bristle Brushes, for cleaning sieves and pans.
6.7 Special Apparatus, for wet screening, including deep-frame sieves.
6.8 U.S. Standard Sieves, confor
...