ASTM D4312-20
(Test Method)Standard Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Short Method)
Standard Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Short Method)
SIGNIFICANCE AND USE
4.1 This test method is useful for evaluating and characterizing tars and pitches and is one element in establishing the uniformity of shipment or sources of supply.
SCOPE
1.1 This test method covers the determination of toluene-insoluble matter (TI) in tar and pitch.
1.2 Since this test method is empirical, strict adherence to all details of the procedure is necessary.
1.3 The values stated in SI units are to be regarded as standard.
1.3.1 Exception—Other non-SI units are provided for information only.
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 hazard statements are given in Section 7.
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: D4312 − 20
Standard Test Method for
Toluene-Insoluble (TI) Content of Tar and Pitch (Short
1
Method)
This standard is issued under the fixed designation D4312; 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* Hydrocarbons and Related Materials
D4072 Test Method for Toluene-Insoluble (TI) Content of
1.1 This test method covers the determination of toluene-
Tar and Pitch
insoluble matter (TI) in tar and pitch.
D4296 Practice for Sampling Pitch
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 SI units are to be regarded as
3. Summary of Test Method
standard.
3.1 The sample is digested, then extracted with hot toluene
1.3.1 Exception—Other non-SI units are provided for infor-
in an alundum thimble. The insoluble matter is dried and
mation only.
weighed.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 This test method is useful for evaluating and character-
priate safety, health, and environmental practices and deter-
izing tars and pitches and is one element in establishing the
mine the applicability of regulatory limitations prior to use.
uniformity of shipment or sources of supply.
Specific hazard statements are given in Section 7.
1.5 This international standard was developed in accor-
5. Apparatus
dance with internationally recognized principles on standard-
5.1 ExtractionApparatus, flask with metal cap condenser as
ization established in the Decision on Principles for the
shown in Fig. 1.
Development of International Standards, Guides and Recom-
5.2 Extraction Thimbles, Alundum AN 485 coarse (for-
mendations issued by the World Trade Organization Technical
merly RA98), 30 mm in diameter by 80 mm in height with flat
Barriers to Trade (TBT) Committee.
bottom.
2. Referenced Documents
5.3 Sieves, U.S. Standard 600 µm (No. 30) and 250 µm (No.
2
2.1 ASTM Standards: 60), conforming to Specification E11.
D95 Test Method for Water in Petroleum Products and
5.4 Heater, having a minimum capacity of 300 W per unit.
Bituminous Materials by Distillation
Ahot plate or other heaters that maintain the proper reflux rate
D329 Specification for Acetone
are acceptable.
D362 SpecificationforIndustrialGradeToluene(Withdrawn
3
6. Reagents
1989)
D850 Test Method for Distillation of Industrial Aromatic
6.1 Toluene, Industrial Pure, meeting Specification D362.
6.2 Acetone, meeting the requirements of Specification
1 D329.
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
7. Hazards
SubcommitteeD02.05onPropertiesofFuels,PetroleumCokeandCarbonMaterial.
Current edition approved June 1, 2020. Published June 2020. Originally
7.1 Since toluene is a toxic and flammable substance, all
approved in 1983. Last previous edition approved in 2015 as D4312 – 15. DOI:
working areas should be efficiently hooded and kept free of
10.1520/D4312-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or sparks and flames.
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 8. Bulk Sampling
the ASTM website.
3
8.1 Samples from shipments shall be taken in accordance
The last approved version of this historical standard is referenced on
www.astm.org. with Practice D4296, and shall be free of foreign substances.
*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
1
---------------------- Page: 1 ----------------------
D4312 − 20
600 µm (No. 30) sieve, taking care to avoid excessive loss of
volatile matter. Do not exceed 10 min for this melting period.
Pass the heated sample through the 600 µm (No. 30) sieve to
remove foreign matter.
10.3 Tar—Heat a representative portion of the dry tar to the
lowest temperature that will permit passage through the
600 µm (No. 30) sieve, then filter through this sieve to remove
foreign matter.
10.4 Discard working sample 24 h after crushing and
sieving as changes in composition sometimes occur in pulv
...
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.
Designation: D4312 − 15 D4312 − 20
Standard Test Method for
Toluene-Insoluble (TI) Content of Tar and Pitch (Short
1
Method)
This standard is issued under the fixed designation D4312; 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*
1.1 This test method covers the determination of toluene-insoluble matter (TI) in tar and pitch.
1.2 Since this test method is empirical, strict adherence to all details of the procedure is necessary.
1.3 The values stated in SI units are to be regarded as standard.
1.3.1 Exception—Other non-SI units are provided for information only.
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 hazard statements are given in Section 7.
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:
D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation
D329 Specification for Acetone
3
D362 Specification for Industrial Grade Toluene (Withdrawn 1989)
D850 Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials
D4072 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch
D4296 Practice for Sampling Pitch
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Summary of Test Method
3.1 The sample is digested, then extracted with hot toluene in an alundum thimble. The insoluble matter is dried and weighed.
4. Significance and Use
4.1 This test method is useful for evaluating and characterizing tars and pitches and is one element in establishing the uniformity
of shipment or sources of supply.
5. Apparatus
5.1 Extraction Apparatus, flask with metal cap condenser as shown in Fig. 1.
5.2 Extraction Thimbles, Alundum AN 485 coarse (formerly RA 98), 30 mm in diameter by 80 mm in height with flat bottom.
5.3 Sieves, U.S. Standard 600 μm (No. 30) and 250 μm (No. 60), conforming to Specification E11.
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 Dec. 1, 2015June 1, 2020. Published December 2015June 2020. Originally approved in 1983. Last previous edition approved in 20102015 as
D4312 – 95a (2010).D4312 – 15. DOI: 10.1520/D4312-15.10.1520/D4312-20.
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.
3
The last approved version of this historical standard is referenced on www.astm.org.
*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
1
---------------------- Page: 1 ----------------------
D4312 − 20
FIG. 1 Extraction Apparatus
5.4 Heater, having a minimum capacity of 300 W per unit. A hot plate or other heaters that maintain the proper reflux rate are
acceptable.
6. Reagents
6.1 Toluene, Industrial Pure, meeting Specification D362.
6.2 Acetone, meeting the requirements of Specification D329.
7. Hazards
7.1 Since toluene is a toxic and flammable substance, all working areas should be efficiently hooded and kept free of sparks and
flames.
8. Bulk Sampling
8.1 Samples from shipments shall be taken in accordance with Practice D4296, and shall be free of foreign substances.
Thoroughly mix the sample immediately before removing a representative portion for the determination or for dehydration.
9. Dehydration of Sample
9.1 Hard Pitch—If the solid bulk sample contains free water, air-dry a representative portion.
9.2 Soft Pitch—If the presence o
...
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