ASTM D6347/D6347M-99

Standard Test Method for Determination of Bulk Density of Coal Using Nuclear Backscatter Depth Density Methods

SCOPE
1.1 This test method covers procedures for determining the bulk density of coal using instrumentation that measures the relative backscatter of nuclear gamma radiation throughout the depth of the stockpile under test.
1.2 This procedure is applicable to all ranks of coal.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents: therefore, each system must be used independent of the other. Within the text, SI units are shown in brackets.
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. The equipment uses radioactive materials, which may be hazardous to the health of users, unless proper precautions are taken.

General Information

• Status: Historical
• Publication Date: 09-Sep-1999
• ICS: 17.060 - Measurement of volume, mass, density, viscosity
• ICS: 73.040 - Coals
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.07 - Physical Characteristics of Coal

Relations

• Replaced By: ASTM D6347/D6347M-05 - Standard Test Method for Determination of Bulk Density of Coal Using Nuclear Backscatter Depth Density Methods
• Effective Date: 01-Jun-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D6347/D6347M–99
Standard Test Method for
Determination of Bulk Density of Coal Using Nuclear
1
Backscatter Depth Density Methods
This standard is issued under the fixed designation D6347/D6347M; 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 (ε) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Data obtained from the density of coal stockpiles is combined with volume determinations perTest
Method D6172 to complete the physical inventory of total tons. The book inventory is compared to
thephysicalinventoryfordeterminingtheaccumulationofmeasurementdifferencethathaveoccurred
since the last physical inventory.
Since the physical inventory is the reference value used to compare and adjust the book inventory,
it is important that the standard methods for conducting the density and volume measurements
introduce the least possible error. Close adherence to the details of the procedures described in this
standard is a prerequisite to the objective of this test method.
This standard test method for determination of bulk density of stockpiled coal is used for all ranks
of coal. Proper density determination involves an understanding of the physical characteristics of the
coal types and the stockpiling facilities.
1. Scope D1586 Test Method for Penetration Test and Split-Barrel
3
Sampling of Soils
1.1 This test method covers procedures for determining the
D3180 Practice for Calculating Coal and Coke Analysis
bulk density of coal using instrumentation that measures the
2
from As-Determined to Different Bases
relative backscatter of nuclear gamma radiation throughout the
D6172 Test Method Determining the Volume of Bulk
depth of the stockpile under test.
Materials Using Contours of Cross Sections Created by
1.2 This procedure is applicable to all ranks of coal.
Direct Operator Compilation Using Photogrammetric Pro-
1.3 The values stated in either SI units or inch-pound units
2
cedures
are to be regarded separately as standard. The values stated in
4
E105 Practice for Probability Sampling of Materials
each system are not exact equivalents: therefore, each system
E122 Practice for Choice of Sample Size to Estimate a
mustbeusedindependentoftheother.Withinthetext,SIunits
4
Measure of Quality for a Lot or Process
are shown in brackets.
E177 Practice for Use of the Terms Precision and Bias in
1.4 This standard does not purport to address all of the
4
ASTM Test Methods
safety concerns, if any, associated with its use. It is the
4
E456 Terminology Related to Quality and Statistics
responsibility of the user of this standard to establish appro-
2.2 NIST Standard:
priate safety and health practices and determine the applica-
National Institute for Standards and Technology Handbook
bility of regulatory limitations prior to use. The equipment uses
44, Specifications, Tolerances, and Other Technical Re-
radioactive materials, which may be hazardous to the health of
5
quirements for Weighing and Measuring Devices
users, unless proper precautions are taken.
2.3 ASME Standard:
6
2. Referenced Documents
ASME Pipe Codes
2.4 Code of Federal Regulations:
2.1 ASTM Standards:
2
D121 Terminology of Coal and Coke
1 3
This test method is under the jurisdiction of ASTM Committee D05 on Coal Annual Book of ASTM Standards, Vol 04.08.
4
and Coke and is the direct responsibility of Subcommittee D 05.07 on Physical Annual Book of ASTM Standards, Vol 14.02.
5
Characteristics of Coal. Available from National Institute of Standards and Technology (NIST),
Current edition approved Sept. 10, 1999. Published January 2000. Originally Gaithersburg, MD 20899.
6
published as D6347/D6347M–98. Last previous edition D6347/D6347M–98. Available from American Society of Mechanical Engineers, 345 E. 47th St.,
2
Annual Book of ASTM Standards, Vol 05.06. New York, NY 10017.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6347/D6347M–99
7
Title 10, Parts 19 and 20
Procedure C—hydraulic access procedure 10.8
7
Field Calibration of the Nuclear Gauge 11
Title 49
Influence of elemental composition on nuclear depth density probe 11.1
Perform calibration procedures on-site 11.2
3. Terminology
Minimum eight calibration vessels 11.3
Weight and record empty calibration vessel weight 11.4
3.1 Definitions of Terms:
Compact coal in calibration vessel 11.5
3.1.1 counting period—the period of time, set using the
Weigh and record compacted coal in calibration vessel 11.6
scaler time switch, during which the readout device accumu-
Penetrate compacted coal in calibration vessel 11.7
M
...