ASTM D482-12

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D482 − 12
Designation:4/96
Standard Test Method for
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Ash from Petroleum Products
This standard is issued under the fixed designation D482; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* D4057 Practice for Manual Sampling of Petroleum and
Petroleum Products
1.1 This test method covers the determination of ash in the
D4177 Practice for Automatic Sampling of Petroleum and
range 0.001–0.180 mass %, from distillate and residual fuels,
Petroleum Products
gas turbine fuels, crude oils, lubricating oils, waxes, and other
D4928 Test Method for Water in Crude Oils by Coulometric
petroleum products, in which any ash-forming materials pres-
Karl Fischer Titration
ent are normally considered to be undesirable impurities or
D6299 Practice for Applying Statistical Quality Assurance
contaminants (Note 1).The test method is limited to petroleum
and Control Charting Techniques to Evaluate Analytical
products which are free from added ash-forming additives,
Measurement System Performance
including certain phosphorus compounds (Note 2).
D6792 Practice for Quality System in Petroleum Products
NOTE 1—In certain types of samples, all of the ash-forming metals are
and Lubricants Testing Laboratories
not retained quantitatively in the ash. This is particularly true of distillate
oils, which require a special ash procedure in order to retain metals
3. Summary of Test Method
quantitatively.
NOTE 2—This test method is not intended for the analysis of unused
3.1 The sample contained in a suitable vessel is ignited and
lubricating oils containing additives; for such samples use Test Method
allowed to burn until only ash and carbon remain. The
D874. Neither is it intended for the analysis of lubricating oils containing
carbonaceous residue is reduced to an ash by heating in a
lead nor for used engine crankcase oils.
muffle furnace at 775°C, cooled and weighed.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
4. Significance and Use
only. The preferred expression of the property is mass %.
4.1 Knowledge of the amount of ash-forming material
1.3 This standard does not purport to address all of the
present in a product can provide information as to whether or
safety concerns, if any, associated with its use. It is the
not the product is suitable for use in a given application. Ash
responsibility of the user of this standard to establish appro-
can result from oil or water-soluble metallic compounds or
priate safety and health practices and determine the applica-
from extraneous solids such as dirt and rust.
bility of regulatory limitations prior to use.
5. Apparatus
2. Referenced Documents
2
5.1 EvaporatingDishorCrucible,madeofplatinum,silica,
2.1 ASTM Standards:
or porcelain, of 90 mL minimum capacity to 120-mL maxi-
D874 Test Method for Sulfated Ash from Lubricating Oils
mum capacity.
and Additives
5.2 Electric Muffle Furnace, capable of maintaining a tem-
perature of 775 6 25°C and preferably having suitable
1
This test method is under the jurisdiction of ASTM Committee D02 on
apertures at the front and rear so as to allow a slow natural
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.03 on Elemental Analysis.
draught of air to pass through.
Current edition approved Dec. 1, 2012. Published March 2013. Originally
5.3 Meeker Gas Burner, or equivalent.
approved in 1938. Last previous edition approved in 2007 as D482–07. DOI:
10.1520/D0482-12.
5.4 Mechanical Shaker.
In the IP, this test method is under the jurisdiction of the Standardization
Committee. This test method was adopted as a joint ASTM-IP standard in 1965.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Reagents
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.1 Propan-2-ol— (Warning—Flammable, can be explo-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. sive when evaporated to or near dryness.)
*A Summary of Changes section appears at the end of this standard
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D482 − 12
TABLE 1 Test Specimen Mass versus Ash
6.2 Toluene—(Warning—Flammable, toxic.)
Test Specimen,
6.3 Quality Control (QC) Samples , preferably are portions Expected Ash, mass % Ash Mass, mg
mass, g
of one or more liqui
...