ASTM D20-03(2009)
(Test Method)Standard Test Method for Distillation of Road Tars
Standard Test Method for Distillation of Road Tars
SIGNIFICANCE AND USE
The distillation test separates tar into fractions according to a series of specified temperatures.
SCOPE
1.1 This test method covers the distillation of road tars.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety problems, 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
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D20 − 03(Reapproved 2009)
Standard Test Method for
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Distillation of Road Tars
ThisstandardisissuedunderthefixeddesignationD20;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
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
Diameter of bulb, outside, mm 86.0 ± 1.5
Diameter of neck, inside, mm 22.0 ± 1.0
1.1 This test method covers the distillation of road tars.
Diameter of side-arm, inside, mm 10.0 ± 0.5
Height of flask, outside, mm 131.0 ± 1.5
1.2 The values stated in SI units are to be regarded as
Vertical distance, bottom of bulb, outside, to 93.0 ± 1.5
horizontal
standard. No other units of measurement are included in this
tangent at side-arm, inside, mm
standard.
Length of side-arm, mm 220 ± 5
Angle of side-arm, deg 75 ± 2
1.3 This standard does not purport to address all of the
Thickness of side-arm wall, mm 1.0 to 1.5
safety problems, if any, associated with its use. It is the
5.2 Condenser Tube—Atapered glass condenser, as shown
responsibility of the user of this standard to establish appro-
in Fig. 2 and Fig. 3, having the following dimensions:
priate safety and health practices and determine the applica-
Outside diameter of small end, mm 12.5 ± 1.5
bility of regulatory limitations prior to use.
Outside diameter of large end, mm 28.5 ± 3.0
Length, mm 360 ± 4
Length of uniformly tapered part, mm 100 ± 5
2. Referenced Documents
2 5.3 SourceofHeat—Aheatsourceconsistingofabunsenor
2.1 ASTM Standards:
meker-type burner (Note 1) or an electric heater. The electric
E1Specification for ASTM Liquid-in-Glass Thermometers
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heater shall have an output variable of 750 W and an upper
refractorywithdimensionsasshowninFig.4.Thetemperature
3. Summary of Test Method
of the heater shall be controlled by a variable transformer or
3.1 A 100-g sample is distilled at a controlled rate from a
rheostat suitable for the voltage used, and shall be fitted with a
300-mL flask into tared receivers. The masses of distillate
clamp for mounting on a vertical support rod.
fractions at a series of specified temperatures and of residue at
NOTE 1—An artificial gas model used with natural gas has been found
themaximumspecifiedtemperaturearedetermined.Ifdesired,
to give a uniform and easily controlled source of heat.
the residue and distillates may be used for further testing.
5.4 Flask Shield and Cover for Flame Distillation—Asteel
shield (preferably stainless) lined with 3-mm Transite board,
4. Significance and Use
non-asbestos, with two-part cover made from 6-mm Transite
4.1 Thedistillationtestseparatestarintofractionsaccording
board of the form and dimensions shown in Fig. 5.
to a series of specified temperatures.
5.5 Flask Shield and Cover for Electric-Heater
Distillation—A steel shield (preferably stainless) fitted with
5. Apparatus
mica windows, and a cover of the same construction and
dimensions as those for flame distillation (5.4) except for the
5.1 Flask—Aside-arm distillation flask, as shown in Fig. 1,
height of the shield (see Fig. 6).
conforming to the following dimensions:
5.6 Gauze for Flame Distillation—Two sheets of 1.0-mm
opening wire gauze made of 0.56-mm diameter nickel-
1 chromium wire measuring a minimum of 125 mm in diameter
This method is under the jurisdiction of ASTM Committee D04 on Road and
Paving Materials and is the direct responsibility of Subcommittee D04.43 on
or (125 by 125-mm) square.
Specifications and Test for Tar and Tar Products.
Current edition approved Dec. 1, 2009. Published January 2010. Originally
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approved in 1911. Last previous edition approved in 2003 as D20–03. DOI: The Precision Ful-Kontrol 750-W heater with built-in variable transformer
10.1520/D0020-03R09. control, available from Precision Scientific Co., Chicago, IL, has been found
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or satisfactory. This heater is only available for 115 V. 50/60 Hz. If you are aware of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM alternative suppliers, please provide this information to ASTM International
Standards volume information, refer to the standard’s Document Summary page on Headquarters.Your comments will receive careful consideration at a meeting of the
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the ASTM website. responsible technical committee, which you may attend.
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D20 − 03 (2009)
7.1.3 When using the flame distillation apparatus, place the
flask in the flask shield with its bulb resting on th
...
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