ASTM D197-19

Standard Test Method for Sampling and Fineness Test of Pulverized Coal

SIGNIFICANCE AND USE
3.1 This test method provides a means for assisting in the evaluation of pulverizers and pulverizer systems in terms of fineness specifications. It may also be used to confirm the influence of coal fineness on combustion performance and to evaluate carbon loss. By consent among interested parties, it may be used for evaluation of coal fineness in preparation, pneumatic transfer systems, etc.
SCOPE
1.1 This test method covers the determination of the fineness by sieve analysis of coal sampled from a dry pulverizing operation. It is not applicable to products of wet milling or to fines that have clustered into an agglomerated mass.  
1.2 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: 31-Oct-2019
• ICS: 73.040 - Coals
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.07 - Physical Characteristics of Coal

Relations

• Referred By: ASTM D4749/D4749M-87(2019)e1 - Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
• Effective Date: 01-Nov-2019

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: D197 − 19
Standard Test Method for
1
Sampling and Fineness Test of Pulverized Coal
This standard is issued under the fixed designation D197; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Apparatus
1.1 This test method covers the determination of the fine-
4.1 Sample Containers—Heavy vapor impervious bags,
ness by sieve analysis of coal sampled from a dry pulverizing
properly sealed, or noncorroding cans such as those with an
operation. It is not applicable to products of wet milling or to
airtight, friction top or screw top sealed with a rubber gasket
fines that have clustered into an agglomerated mass.
and pressure sensitive tape for use in storage and transport of
the laboratory sample. Glass containers sealed with rubber
1.2 The values stated in SI units are to be regarded as
gaskets may be used, but care must be taken to avoid breakage
standard. The values given in parentheses after SI units are
in transport.
provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the
4.2 Drying Oven—A device for passing slightly heated air
safety concerns, if any, associated with its use. It is the
over the sample. The oven should be capable of maintaining a
responsibility of the user of this standard to establish appro-
temperature of 10°C to 15°C (18°F to 27°F) above room
priate safety, health, and environmental practices and deter-
temperature with a maximum oven temperature of 40°C
mine the applicability of regulatory limitations prior to use.
(104°F). Air changes should be at the rate of 1L⁄min to
1.4 This international standard was developed in accor-
4L⁄min.
dance with internationally recognized principles on standard-
4.3 Sieves, square-hole, woven-wire cloth conforming to
ization established in the Decision on Principles for the
Specification E11:
Development of International Standards, Guides and Recom-
2.36 mm (No. 8 USA Standard)
mendations issued by the World Trade Organization Technical
1.18 mm (No. 16 USA Standard)
Barriers to Trade (TBT) Committee.
600 µm (No. 30 USA Standard)
300 µm (No. 50 USA Standard)
2. Referenced Documents 150 µm (No. 100 USA Standard)
75 µm (No. 200 USA Standard)
2
2.1 ASTM Standards:
45 µm (No. 325 USA Standard)
E11Specification forWovenWireTest Sieve Cloth andTest
The sieve frames shall be 203mm (8in.) in diameter, and
Sieves
the height of the sieve from the top of the frame to the cloth
shall be either 50.8mm (2 in.) or 25.4mm (1in.). Selection of
3. Significance and Use
specificsizesisoptional,dependingontheobjectiveofthetest.
3.1 This test method provides a means for assisting in the
4.3.1 Since the finer mesh sieves in particular are suscep-
evaluation of pulverizers and pulverizer systems in terms of
tible to damage by distortion resulting from undue pressure,
fineness specifications. It may also be used to confirm the
accidental scraping with hard brushes, etc., each sieve should
influence of coal fineness on combustion performance and to
be closely inspected and discarded if it shows evidence of
evaluate carbon loss. By consent among interested parties, it
damage.
may be used for evaluation of coal fineness in preparation,
4.4 Mechanical Sieving Machine—The mechanical sieving
pneumatic transfer systems, etc.
machine shall be designed to provide both a circular motion
andatappingaction.Itshallbedesignedtoacceptanassembly
1
This test method is under the jurisdiction of ASTM Committee D05 on Coal
of vertically nested circular sieves as described in 4.3. The
and Coke and is the direct responsibility of Subcommittee D05.07 on Physical
machine action shall be such that results as described in
Characteristics of Coal.
Section 7 are obtained within the allotted time frame. Action
Current edition approved Nov. 1, 2019. Published December 2019. Originally
should not be sufficiently severe to generate new fines by
approved in 1924. Last previous edition approved in 2012 as D197–87(2012).
DOI: 10.1520/D0197-19.
particle degradation. To facilitate the sieving operation, a
2
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control switch device with timer is recommended. Other
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
equipment designs may be used provided the results are
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. comparable.
Copyright © ASTM In
...

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: D197 − 87 (Reapproved 2012) D197 − 19
Standard Test Method for
1
Sampling and Fineness Test of Pulverized Coal
This standard is issued under the fixed designation D197; 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 fineness by sieve analysis of coal sampled from a dry pulverizing operation.
It is not applicable to products of wet milling or to fines that have clustered into an agglomerated mass.
1.2 The values stated in inch-poundSI units shall are to be regarded as the standard. Sample weights of 1000 g or less shall be
expressed in metric units.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 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
3. Significance and Use
3.1 This test method provides a means for assisting in the evaluation of pulverizers and pulverizer systems in terms of fineness
specifications. It may also be used to confirm the influence of coal fineness on combustion performance and to evaluate carbon
loss. By consent among interested parties, it may be used for evaluation of coal fineness in preparation, pneumatic transfer systems,
etc.
4. Apparatus
4.1 Sample Containers—Heavy vapor impervious bags, properly sealed, or noncorroding cans such as those with an airtight,
friction top or screw top sealed with a rubber gasket and pressure sensitive tape for use in storage and transport of the laboratory
sample. Glass containers sealed with rubber gaskets may be used, but care must be taken to avoid breakage in transport.
4.2 Drying Oven—A device for passing slightly heated air over the sample. The oven should be capable of maintaining a
temperature of 1810 °C to 27°F (1015 °C (18 °F to 15°C)27 °F) above room temperature with a maximum oven temperature of
104°F (40°C).40 °C (104 °F). Air changes should be at the rate of 11 L ⁄min to 4/min.4 L ⁄min.
4.3 Sieves, square-hole, woven-wire cloth conforming to Specification E11:
No. 8 USA Standard (2.36 mm)
No. 16 USA Standard (1.18 mm)
No. 30 USA Standard (600 μm)
No. 50 USA Standard (300 μm)
No. 100 USA Standard (150 μm)
No. 200 USA Standard (75 μm)
No. 325 USA Standard (45 μm)
1
This test method is under the jurisdiction of ASTM Committee D05 on Coal and Coke and is the direct responsibility of Subcommittee D05.07 on Physical Characteristics
of Coal.
Current edition approved Sept. 1, 2012Nov. 1, 2019. Published November 2012December 2019. Originally publishedapproved in 1924. Last previous edition approved
in 20072012 as D197 – 87 (2007).(2012). DOI: 10.1520/D0197-87R12.10.1520/D0197-19.
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
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D197 − 19
2.36 mm (No. 8 USA Standard)
1.18 mm (No. 16 USA Standard)
600 μm (No. 30 USA Standard)
300 μm (No. 50 USA Standard)
150 μm (No. 100 USA Standard)
75 μm (No. 200 USA Standard)
45 μm (No. 325 USA Standard)
The sieve frames shall be 8 in. (203 mm) 203 mm (8 in.) in diameter, and the height of the sieve from the top of the frame to
the cloth shall be either 2 in. (50.8 mm) or 1 in. (25.4 mm). 50.8 mm (2 in.) or 25.4 mm (1 in.). Selection of specific sizes is
optional, depending on the objective of the test.
4.3.1 Since the finer mesh sieves
...