Standard Test Method for Sulfur in Petroleum Products (General Bomb Method)

SCOPE
1.1 This test method covers the determination of sulfur in petroleum products, including lubricating oils containing additives, additive concentrates, and lubricating greases that cannot be burned completely in a wick lamp. The test method is applicable to any petroleum product sufficiently low in volatility that it can be weighed accurately in an open sample boat and containing at least 0.1% sulfur.  Note 1-This test method is not applicable to samples containing elements that give residues, other than barium sulfate, which are insoluble in dilute hydrochloric acid and would interfere in the precipitation step. These interfering elements include iron, aluminum, calcium, silicon, and lead which are sometimes present in greases, lube oil additives, or additive oils. Other acid insoluble materials that interfere are silica, molybdenum disulfide, asbestos, mica, etc. The test method is not applicable to used oils containing wear metals, and lead or silicates from contamination. Samples that are excluded can be analyzed by Test Method D1552.
1.2 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 3.2 for specific precautionary directions incorporated in the test method.

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ASTM D129-00 - Standard Test Method for Sulfur in Petroleum Products (General Bomb Method)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation:D129–00 British Standard 4454
Designation: 61/99
Standard Test Method for
1
Sulfur in Petroleum Products (General Bomb Method)
This standard is issued under the fixed designation D 129; 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 (e) indicates an editorial change since the last revision or reapproval.
This test method has been adopted for use by government agencies to replace Method 5202 of Federal Test Method No. 791b
1. Scope* Techniques to Evaluate Analytical Measurement System
4
Performance
1.1 This test method covers the determination of sulfur in
E 144 Practice for Safe Use of Oxygen Combustion
petroleum products, including lubricating oils containing addi-
5
Bombs
tives, additive concentrates, and lubricating greases that cannot
be burned completely in a wick lamp. The test method is
3. Summary of Test Method
applicable to any petroleum product sufficiently low in vola-
3.1 The sample is oxidized by combustion in a bomb
tility that it can be weighed accurately in an open sample boat
containing oxygen under pressure. The sulfur, as sulfate in the
and containing at least 0.1 % sulfur.
bomb washings, is determined gravimetrically as barium sul-
NOTE 1—This test method is not applicable to samples containing
fate.
elements that give residues, other than barium sulfate, which are insoluble
3.2 Warning— Strict adherence to all of the provisions
in dilute hydrochloric acid and would interfere in the precipitation step.
prescribed hereafter ensures against explosive rupture of the
These interfering elements include iron, aluminum, calcium, silicon, and
bomb, or a blow-out, provided the bomb is of proper design
leadwhicharesometimespresentingreases,lubeoiladditives,oradditive
and construction and in good mechanical condition. It is
oils. Other acid insoluble materials that interfere are silica, molybdenum
disulfide,asbestos,mica,etc.Thetestmethodisnotapplicabletousedoils desirable, however, that the bomb be enclosed in a shield of
containingwearmetals,andleadorsilicatesfromcontamination.Samples
steel plate at least 13 mm thick, or equivalent protection be
that are excluded can be analyzed by Test Method D 1552.
provided against unforseeable contingencies.
1.2 This standard does not purport to address all of the
4. Apparatus and Materials
safety concerns, if any, associated with its use. It is the
6,7
responsibility of the user of this standard to establish appro- 4.1 Bomb, having a capacity of not less than 300 mL, so
constructed that it will not leak during the test and that
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. See 3.2 for specific quantitative recovery of the liquids from the bomb may be
achieved readily. The inner surface of the bomb may be made
precautionary directions incorporated in the test method.
of stainless steel or any other material that will not be affected
2. Referenced Documents
by the combustion process or products. Materials used in the
2.1 ASTM Standards: bomb assembly, such as the head gasket and lead-wire insula-
2
D 1193 Specification for Reagent Water tion,shallberesistanttoheatandchemicalaction,andshallnot
D 1552 Test Method for Sulfur in Petroleum Products undergo any reaction that will affect the sulfur content of the
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(High-Temperature Method) liquid in the bomb.
D 6299 Practice for Applying Statistical Quality Assurance 4.2 Sample Cup, platinum, 24 mm in outside diameter at the
bottom, 27 mm in outside diameter at the top, 12 mm in height
outside, and weighing 10 to 11 g.
4.3 Firing Wire, platinum, No. 26B&S gage, 0.41 mm (16
1
This test method is under the jurisdiction of ASTM Committee D02 on
thou), 27 SWG, or equivalent. (Warning—The switch in the
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.03 on Elemental Analysis.
Current edition approved Jan. 10, 2000. Published March 2000. Originally
published as D 129 – 22. Last previous edition D 129 – 95.
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This test method was adopted as a joint ASTM-IP standard in 1964. Annual Book of ASTM Standards, Vol 05.03.
5
In the IP, this test method is under the jurisdiction of the Standardization Annual Book of ASTM Standards, Vol 14.02.
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Committee. Criteria for judging the acceptability of new and used oxygen combustion
2
Annual Book of ASTM Standards, Vol 11.01. bombs are described in Practice E 144.
3 7
Annual Book of ASTM Standards, Vol 05.01. A bomb conforming to the test specifications in IP Standard IP 12 is suitable.
*ASummary of Changes section appears at the end of this standard.
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