ASTM D3180-89(1997)

STD.ASTM D3LBCl-ENGL L989 - 0759530 ObL2794 T23 -
AMERICAN SOCIETY FOR TESTING AND MATERIALS
Designation: D 3180 - 89 (Reapproved 1997)
100 Barr Harbor Dr., West Conshohocken. PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Practice for
Calculating Coal and Coke Analyses from As-Determined
to Different Bases’
This standard is issued under the fixed designation D 3 180; 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 (0 indicates an editorial change since the last revision or reapproval.
1. Scope moisture associated with the sample. The numerical value as
established by Test Method D 3 173 is used for converting the
1.1 This practice gives formulas to enable analytical data
as-determined data to a dry basis.
to be expressed on various different bases in common use.
3.1.4 dry, ash-free basis-data calculated to a theoretical
Such bases are: as received, dry, equilibrium moisture, dry
base of no moisture or ash associated with the sample.
ash free, and others.
Numerical values as established by Test Method D 3 173 and
1.2 This standard does not purport to address all of the
Test Method D 3 174 are used for converting the as-deter-
safety concerns, tf any, associated with its use. It is the
mined data to a moisture- and ash-free basis.
responsibility of the user this standard to establish appro-
3.1.5 equilibrium moisture base-data calculated to the
priate safety and health practices and determine the applica-
moisture level established as the equilibrium moisture.
bility of regulatory limitations prior to use.
Numerical values as established by Test Method D 1412 are
1.3 The values stated in SI units are to be regarded as the
used for the calculation.
standard.
2. Referenced Documents 4. Significance and Use
4.1 The calculations of analytical data for the coal and
2.1 ASTM Standards:
coke test parameters listed in Section 6, assume the analysis
D 388 Classification of Coals by Rank*
sample has been prepared according to Method D 20 13.
D 14 12 Test Method for Equilibrium Moisture of Coal at
4.2 This practice provides formulas, to enable calculations
96 to 97 Percent Relative Humidity and 3o’C*
of data from the as-determined analysis sample to various
D 20 13 Method of Preparing Coal Samples for Analysis*
moisture basis, in common use by the coal and coke
D 3 173 Test Method for Moisture in the Analysis Sample
industry.
of Coal and Coke2
D 3 174 Test Method for Ash in the Analysis Sample of
Coal and Coke from Coal*
5. Applicable Parameters and Symbols Used
5.1 The calculation procedures defined in 6.1.3 and 6.2.2
3. Terminology
are applicable to the following analysis parameters *hen
3: 1 Definitions: expressed as a weight percentage (except gross caloritic value
3.1.1 as-determined basis-analytical data obtained from as Btu/lb):
the analysis sample of coal or coke after conditioning and
Ash
preparation to No. 60 (250~pm) sieve in accordance with
Carbon
Method D 20 13. As-determined data represents the numer-
Carbon dioxide
ical values obtained at the particular moisture level in the
Chlorine
sample at the time of analysis. These values are normally
Calorific value (gross)
Fixed carbon
converted, according to formulae contained herein, to con-
Nitrogen
ventional reporting bases.
Sulfur
3.1.2 as-received basis-analytical data calculated to the
Sulfur forms (namely, pyritic, sulfate, organic)
moisture condition of the sample as it arrived at the
Volatile matter
laboratory and before any processing or conditioning. If the
sample has been maintained in a sealed state so that there
5.2 The symbols used in this practice:
has been no gain or loss, the as-received basis is equivalent to
A = ash; weight %
the moisture basis as sampled.
A4 = moisture, weight %
3.1.3 dry basis-data calculated to a theoretical base of no
P = any analysis parameter listed in 5.1, weight %
(except gross calorific value is Btu/lb)
ADL = air-dry loss, weight % of as-received sample. See
’ This practice is under the jurisdiction of ASTM Committee D-5 on Coal and
Method D 20 13.
Coke and is the direct responsibility of Subcommitte DO521 on Methods of
Analysis. H
= hydrogen, weight %
Current edition approved Sept. 29, 1989. Published February 1990. Originally
Ox = oxygen, weight %
published as D 3 180 - 74. Last previous edition D 3180 - 84.
5.3 Subscripts used in this practice:
‘Annual Book of ASTM Standards, Vol 05.05.

STD.ASTM D3l180-ENGL 1989 - 0759530 Ob112795 =ibT m
TABLE 1 Conversion Formula Chart
wanted
Given
Dry Ash-free (daf)
As-Determined (ad) As-Received (ar)
Dry 03
700 100-M 100 100
As-Determined (ad)
100 -MM -Ad
100-M,
As-Received (ar) 100 -Ad, 100 100
loo -My 100-M, 100~M--A,
100-M, 100
100-M,
Dry (d)
100 loo 100-A,
IOO-&,-A, lOO-M--A, IW-Ad
Dry Ash-free (daf)
100 100 100
6.2.1 Hydrogen and Oxygen:
ad = as-determined
ar = as-received
=
dry -O.l119M,)X
4 = Wad
MO-M,
iaf = dry, ash-free (equivalent to moisture and ash free,
maf)
- 0.8881M,)x
ox, = (Ox,
6. Methods for
...