ASTM D3180-15
(Practice)Standard Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases
Standard Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases
SIGNIFICANCE AND USE
4.1 The calculations of analytical data for the coal and coke test parameters listed in Section 6, assume the analysis sample has been prepared according to Practice D2013 and Test Method D3302.
4.2 This practice provides formulas, to enable calculations of data from the as-determined analysis sample to various moisture bases, in common use by the coal and coke industry.
4.3 This practice provides guidance to enable calculations of weight-average data from various lots or sublots, which, initially, are provided at different moisture bases.
4.4 The principles given in this practice are applicable to the calculation of cumulative data (e.g., for trade purposes or for sieve analyses or washability analyses).
SCOPE
1.1 This practice lists formulas that allow analytical data to be expressed in various bases in common use. Such bases are: as received, dry, equilibrium moisture, dry ash free, and others.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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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: D3180 − 15
Standard Practice for
Calculating Coal and Coke Analyses from As-Determined to
1
Different Bases
This standard is issued under the fixed designation D3180; 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 preparation to No. 60 (250-µm) sieve in accordance with
Practice D2013 and Test Method D3302. As-determined data
1.1 This practice lists formulas that allow analytical data to
represents the numerical values obtained at the particular
be expressed in various bases in common use. Such bases are:
moisture level in the sample at the time of analysis. These
as received, dry, equilibrium moisture, dry ash free, and others.
values are normally converted, according to formulae con-
1.2 The values stated in SI units are to be regarded as
tained herein, to conventional reporting bases.
standard. No other units of measurement are included in this
3.1.2 as-received basis—analytical data calculated to the
standard.
moisture condition of the sample as it arrived at the laboratory
1.3 This standard does not purport to address all of the
and before any processing or conditioning. If the sample has
safety concerns, if any, associated with its use. It is the
been maintained in a sealed state so that there has been no gain
responsibility of the user this standard to establish appropriate
or loss, the as-received basis is equivalent to the moisture basis
safety and health practices and determine the applicability of
as sampled.
regulatory limitations prior to use.
3.1.3 dry basis—data calculated to a theoretical base of no
moisture associated with the sample. The numerical value as
2. Referenced Documents
2 established by Test Methods D3173 or D7582 is used for
2.1 ASTM Standards:
converting the as-determined data to a dry basis.
D388 Classification of Coals by Rank
3.1.4 dry, ash-free basis—data calculated to a theoretical
D1412 Test Method for Equilibrium Moisture of Coal at 96
base of no moisture or ash associated with the sample.
to 97 Percent Relative Humidity and 30°C
Numerical values as established by Test Methods D3173,
D2013 Practice for Preparing Coal Samples for Analysis
D3174,or, D7582 are used for converting the as-determined
D3173 Test Method for Moisture in the Analysis Sample of
data to a moisture- and ash-free basis.
Coal and Coke
D3174 Test Method forAsh in theAnalysis Sample of Coal
3.1.5 equilibrium moisture base—data calculated to the
and Coke from Coal
moisture level established as the equilibrium moisture. Nu-
D3302 Test Method for Total Moisture in Coal
merical values as established by Test Method D1412 are used
D7582 Test Methods for Proximate Analysis of Coal and
for the calculation.
Coke by Macro Thermogravimetric Analysis
E29 Practice for Using Significant Digits in Test Data to
4. Significance and Use
Determine Conformance with Specifications
4.1 The calculations of analytical data for the coal and coke
test parameters listed in Section 6, assume the analysis sample
3. Terminology
has been prepared according to Practice D2013 and Test
3.1 Definitions:
Method D3302.
3.1.1 as-determined basis—analytical data obtained from
the analysis sample of coal or coke after conditioning and 4.2 This practice provides formulas, to enable calculations
of data from the as-determined analysis sample to various
moisture bases, in common use by the coal and coke industry.
1
This practice is under the jurisdiction of ASTM Committee D05 on Coal and
Coke and is the direct responsibility of D05.21 on Methods of Analysis.
4.3 This practice provides guidance to enable calculations
Current edition approved Jan. 1, 2015. Published January 2015. Originally
of weight-average data from various lots or sublots, which,
approved in 1974. Last previous edition approved in 2012 as D3180 – 12. DOI:
initially, are provided at different moisture bases.
10.1520/D3180-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.4 Theprinciplesgiveninthispracticeareapplicabletothe
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
calculation of cumulative data (e.g., for trade purposes or for
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. sieve analyses or washability analyses).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D31
...
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: D3180 − 12 D3180 − 15
Standard Practice for
Calculating Coal and Coke Analyses from As-Determined to
1
Different Bases
This standard is issued under the fixed designation D3180; 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 practice lists formulas that allow analytical data to be expressed in various bases in common use. Such bases are: as
received, dry, equilibrium moisture, dry ash free, and others.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
1.3 The values stated in SI units are to be regarded as the standard.
2. Referenced Documents
2
2.1 ASTM Standards:
D388 Classification of Coals by Rank
D1412 Test Method for Equilibrium Moisture of Coal at 96 to 97 Percent Relative Humidity and 30°C
D2013 Practice for Preparing Coal Samples for Analysis
D3173 Test Method for Moisture in the Analysis Sample of Coal and Coke
D3174 Test Method for Ash in the Analysis Sample of Coal and Coke from Coal
D3302 Test Method for Total Moisture in Coal
D7582 Test Methods for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3. Terminology
3.1 Definitions:
3.1.1 as-determined basis—analytical data obtained from the analysis sample of coal or coke after conditioning and preparation
to No. 60 (250-μm) sieve in accordance with Practice D2013 and Test Method D3302. As-determined data represents the numerical
values obtained at the particular moisture level in the sample at the time of analysis. These values are normally converted,
according to formulae contained herein, to conventional reporting bases.
3.1.2 as-received basis—analytical data calculated to the moisture condition of the sample as it arrived at the laboratory and
before any processing or conditioning. If the sample has been maintained in a sealed state so that there has been no gain or loss,
the as-received basis is equivalent to the moisture basis as sampled.
3.1.3 dry basis—data calculated to a theoretical base of no moisture associated with the sample. The numerical value as
established by Test Methods D3173 or D7582 is used for converting the as-determined data to a dry basis.
3.1.4 dry, ash-free basis—data calculated to a theoretical base of no moisture or ash associated with the sample. Numerical
values as established by Test Methods D3173, D3174, or, D7582 are used for converting the as-determined data to a moisture- and
ash-free basis.
3.1.5 equilibrium moisture base—data calculated to the moisture level established as the equilibrium moisture. Numerical
values as established by Test Method D1412 are used for the calculation.
1
This practice is under the jurisdiction of ASTM Committee D05 on Coal and Coke and is the direct responsibility of D05.21 on Methods of Analysis.
Current edition approved April 1, 2012Jan. 1, 2015. Published June 2012January 2015. Originally approved in 1974. Last previous edition approved in 20072012 as
D3180 – 07.D3180 – 12. DOI: 10.1520/D3180-12.10.1520/D3180-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. 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 ----------------------
D3180 − 15
4. Significance and Use
4.1 The calculations of analytical data for the coal and coke test parameters listed in Section 6, assume the analysis sample has
been prepared according to Practice D2013 and Test Method D3302.
4.2 This practice provides formulas, to enable calculations of data from the as-determined analysis sample to various moisture
bases, in common use by the coal and coke industry.
4.3 This practice provides guidance to enable calculations of weight
...
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