ASTM D2415-98(2003)

Standard Test Method for Ash in Coal Tar and Pitch

SIGNIFICANCE AND USE
This test method determines the amount of inorganic matter in the sample.
SCOPE
1.1 This test method covers the determination of the ash content of tar and pitch.
1.2 The values stated in SI units are to be regarded as the standard.
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.

General Information

• Status: Historical
• Publication Date: 31-Oct-2003
• ICS: 75.140 - Waxes, bituminous materials and other petroleum products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.05 - Properties of Fuels, Petroleum Coke and Carbon Material

Relations

• Replaces: ASTM D2415-98 - Standard Test Method for Ash in Coal Tar and Pitch
• Effective Date: 01-Nov-2003
• Replaced By: ASTM D2415-98(2008) - Standard Test Method for Ash in Coal Tar and Pitch
• Effective Date: 15-Oct-2008
• Referred By: ASTM D4715-98(2022)e1 - Standard Test Method for Coking Value of Tar and Pitch (Alcan)
• Effective Date: 01-Nov-2003
• Referred By: ASTM D450/D450M-07(2018) - Standard Specification for Coal-Tar Pitch Used in Roofing, Dampproofing, and Waterproofing
• Effective Date: 01-Nov-2003
• Referred By: ASTM D2416-20 - Standard Test Method for Coking Value of Tar and Pitch (Modified Conradson)
• Effective Date: 01-Nov-2003
• Referred By: ASTM D5710/D5710M-22 - Standard Specification for Trinidad Lake Modified Asphalt
• Effective Date: 01-Nov-2003
• Referred By: ASTM D5040-90(2021) - Standard Test Methods for Ash Content of Adhesives
• Effective Date: 01-Nov-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
Designation:D2415–98 (Reapproved 2003)
Standard Test Method for
Ash in Coal Tar and Pitch
This standard is issued under the fixed designation D 2415; 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.
1. Scope 5.2 Dish or Crucible, porcelain, silica, or platinum, having
a capacity of 35 to 45 mLand a diameter at the top of 55 to 60
1.1 This test method covers the determination of the ash
mm.
content of tar and pitch.
5.3 Sieve, U.S. Standard 600-µm (No. 30), conforming to
1.2 The values stated in SI units are to be regarded as the
SpecificationE11.
standard.
1.3 This standard does not purport to address all of the
6. Bulk Sampling
safety concerns, if any, associated with its use. It is the
6.1 Samples from shipments shall be taken in accordance
responsibility of the user of this standard to establish appro-
with Practice D 4296 and shall be free of foreign substances.
priate safety and health practices and determine the applica-
Thoroughly mix the sample immediately before removing a
bility of regulatory limitations prior to use.
representative portion for the determination or for dehydration.
2. Referenced Documents
7. Dehydration of Sample
2.1 ASTM Standards:
7.1 Hard Pitch—If the solid bulk sample contains free
D 370 Test Method for Dehydration of Oil-Type Preserva-
water, air-dry a representative portion in a forced draft oven at
tives
50°C.
D 4296 Practice for Sampling Pitch
7.2 Soft Pitch—If the presence of water is indicated by
E11 Specification for Wire Cloth and Sieves for Testing
surface foam on heating, maintain a representative portion of
Purposes
the bulk sample at a temperature between 125 and 150°C in an
3. Summary of Test Method open container until the surface is free of foam. Take care not
to overheat, and remove heat source immediately when foam
3.1 The sample is carefully volatilized and burned in a
subsides.
muffle furnace or by other suitable means, after which the
7.3 Tar—Dehydrate a representative portion of the bulk
carbonaceousresidueiscompletelyoxidizedandtheremaining
sample in accordance with Test Method D 370, but stop the
ash stabilized at 900°C in the muffle furnace.
distillation when the temperature reaches 170°C. Separate any
4. Significance and Use
oil from the water which has distilled over (if crystals are
present, warm sufficiently to ensure their solution), and thor-
4.1 This test method determines the amount of inorganic
oughly mix the oil with the residual tar in the still after the
matter in the sample.
latter has cooled to a moderate temperature.
5. Apparatus
8. Preparation of Working Sample
5.1 Muffle Furnace—A muffle furnace with good air circu-
8.1 Hard Pitch—If the pitch can be crushed at room
lation and capable of having its temperature regulated at 900 6
temperature, prepare a 20-g working sample by suitable
10°C.
crushing, mixing, and quartering of a representative portion of
the dry sample. The crushing can be done with a small jaw
crusher and a mullite mortar and pestle. No particle in the
This test method is under the jurisdiction of ASTM Committee D02 on
representative sample shall be larger than 5 mm in any
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
dimension. Crush this sample so that all of it will pass the
D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material.
600-µm (No. 30) sieve.
Current edition approved Nov. 1, 2003. Published November 2003. Originally
approved in 1965. Last previous edition approved in 1998 as D 2415–98.
8.2 SoftPitch—Ifthepitchistoosofttogrindandtoosticky
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
to mix, heat a representative portion of the dry sample to the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
lowest temperature that will permit p
...