ASTM D4746-20
(Test Method)Standard Test Method for Determination of Quinoline Insolubles (QI) in Tar and Pitch by Pressure Filtration
Standard Test Method for Determination of Quinoline Insolubles (QI) in Tar and Pitch by Pressure Filtration
SIGNIFICANCE AND USE
4.1 This test method is useful in evaluating and characterizing tar and pitch and as one element in establishing the uniformity of shipments and sources of supply.
SCOPE
1.1 This test method covers the determination of the quinoline-insoluble matter (QI) in tar and pitch by pressure filtration and gives results comparable to those obtained by Test Method D2318.
1.2 Since this test method is empirical, strict adherence to all details of the procedure is necessary.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazards are given in Section 7, 6.2, and 6.3.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D4746 − 20
Standard Test Method for
Determination of Quinoline Insolubles (QI) in Tar and Pitch
1
by Pressure Filtration
This standard is issued under the fixed designation D4746; 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.
1. Scope* D850 Test Method for Distillation of Industrial Aromatic
Hydrocarbons and Related Materials
1.1 This test method covers the determination of the
D2318 Test Method for Quinoline-Insoluble (QI) Content of
quinoline-insoluble matter (QI) in tar and pitch by pressure
Tar and Pitch
filtration and gives results comparable to those obtained by
D4296 Practice for Sampling Pitch
Test Method D2318.
E1 Specification for ASTM Liquid-in-Glass Thermometers
1.2 Since this test method is empirical, strict adherence to
E11 Specification for Woven Wire Test Sieve Cloth and Test
all details of the procedure is necessary.
Sieves
1.3 The values stated in inch-pound units are to be regarded
3. Summary of Test Method
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
3.1 The sample is digested in hot quinoline and filtered
and are not considered standard. through a heated pressure filter. The insoluble material is
washed with hot, fresh quinoline and with cold acetone, dried,
1.4 This standard does not purport to address all of the
and weighed.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Significance and Use
priate safety, health, and environmental practices and deter-
4.1 This test method is useful in evaluating and character-
mine the applicability of regulatory limitations prior to use.
izing tar and pitch and as one element in establishing the
Specific hazards are given in Section 7, 6.2, and 6.3.
uniformity of shipments and sources of supply.
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
5. Apparatus
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 5.1 Pressure Filtration Vessel—The pressure filtration ves-
3
mendations issued by the World Trade Organization Technical sel (see Fig. 1) is a stainless steel (304) jacketed block heated
Barriers to Trade (TBT) Committee. by steam or cooled with water, sealed by a lid, flat gasket, and
clamp. The interior of the block is designed to accept a 3A2
2. Referenced Documents Berlin porcelain filtration crucible (see 5.4). The crucible is
2
sealed within the block by the use of three O-rings, a crucible
2.1 ASTM Standards:
sealing collar, and an adjustable plunger.
D70 Test Method for Density of Semi-Solid Asphalt Binder
5.1.1 The seal is accomplished when the sealing lid is
(Pycnometer Method)
placedontopoftheblockandclamped.Theadjustableplunger
D95 Test Method for Water in Petroleum Products and
applies a force to the crucible sealing collar, which in turn
Bituminous Materials by Distillation
pushes downward on the crucible and simultaneously com-
D329 Specification for Acetone
presses O-ring gaskets, forming a seal between surfaces of the
crucible and the wall of the block. The filtration of material is
accomplished by nitrogen (10 psig to 30 psig) introduced
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This test method is under the jurisdiction of ASTM Committee D02 on
through the lid of the pressure filter. The filtrate exits from the
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
drain tube at the bottom of the block. The filtrate is disposed
SubcommitteeD02.05onPropertiesofFuels,PetroleumCokeandCarbonMaterial.
Current edition approved June 1, 2020. Published June 2020. Originally
ɛ1
approved in 1987. Last previous edition approved in 2014 as D4746 – 14 . DOI:
3
10.1520/D4746-20. The sole source of supply of the pressure filtration vessel known to the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or committee at this time is Koppers Inc., 436 Seventh Ave., Pittsburgh, PA
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 15219-1800. If you are aware of alternative suppliers, please provide this informa-
Standards volume information, refer to the standard’s Document Summary page on tion toASTM Headquarters. Your comments will receive careful consideration at a
1
the ASTM website. meeting of the responsible technical committee, which you may attend.
*A Sum
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D4746 − 14 D4746 − 20
Standard Test Method for
Determination of Quinoline Insolubles (QI) in Tar and Pitch
1
by Pressure Filtration
This standard is issued under the fixed designation D4746; 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.
1
ε NOTE—Editorial changes were made throughout the test method in September 2014.
1. Scope*
1.1 This test method covers the determination of the quinoline-insoluble matter (QI) in tar and pitch by pressure filtration and
gives results comparable to those obtained by Test Method D2318.
1.2 Since this test method is empirical, strict adherence to all details of the procedure is necessary.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific hazards are given in Section 7, 6.2, and 6.3.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D70 Test Method for Density of Semi-Solid Asphalt Binder (Pycnometer Method)
D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation
D329 Specification for Acetone
D850 Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials
D2318 Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch
D4296 Practice for Sampling Pitch
E1 Specification for ASTM Liquid-in-Glass Thermometers
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Summary of Test Method
3.1 The sample is digested in hot quinoline and filtered through a heated pressure filter. The insoluble material is washed with
hot, fresh quinoline and with cold acetone, dried, and weighed.
4. Significance and Use
4.1 This test method is useful in evaluating and characterizing tar and pitch and as one element in establishing the uniformity
of shipments and sources of supply.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material.
Current edition approved May 1, 2014June 1, 2020. Published May 2014June 2020. Originally approved in 1987. Last previous edition approved in 20132014 as
ɛ1
D4746 – 98 (2013).D4746 – 14 . DOI: 10.1520/D4746-14E01.10.1520/D4746-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4746 − 20
5. Apparatus
3
5.1 Pressure Filtration Vessel—The pressure filtration vessel (see Fig. 1) is a stainless steel (304) jacketed block heated by
steam or cooled with water, sealed by a lid, flat gasket, and clamp. The interior of the block is designed to accept a 3A2 Berlin
porcelain filtration crucible (see 5.4). The crucible is sealed within the block by the use of three O-rings, a crucible sealing collar,
and an adjustable plunger.
5.1.1 The seal is accomplished when the sealing lid is placed on top of the block and clamped. The adjustable plunger applies
a force to the crucible sealing collar, which in turn pushes downward on the crucible and simultaneously compresses O-ring
gaskets, forming a seal between surfaces of the crucible and the wall of the block. The filtration of material is accomplished by
nitrogen
...
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