Astm D 4239 – 04 pdf free download

Standard Test Methods for
Sulfur in the Analysis Sample of Coal and Coke Using HighTemperature Tube Furnace Combustion Methods1

This standard is issued under the fixed designation D 4239; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope

1.1 These test methods cover two alternative procedures
using high-temperature tube furnace combustion methods for
the rapid determination of sulfur in samples of coal and coke.

1.2 These test methods appear in the following order:
Sections
Method A—High-Temperature Combustion
The method with Acid Base Titration Detection Procedures 6-9
Method B—High-Temperature Combustion
The method with Infrared Absorption Detection Procedures 10–12
NOTE 1—High-Temperature Combustion Method with Iodimetric Detection procedures, formally Method B in the 2000 version of this standard
is still a viable method that may be used.

1.2.1 When automated equipment is used to perform any of
the two methods of this test method, the procedures can be
classified as instrumental methods. There are several manufacturers that offer to the coal industry equipment with instrumental analysis capabilities for the determination of the sulfur
content of coal and coke samples.

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 and health practices and determine the applicability of regulatory limitations prior to use. See 7.8 and 11.2.