ASTM D4892-14
(Test Method)Standard Test Method for Density of Solid Pitch (Helium Pycnometer Method)
Standard Test Method for Density of Solid Pitch (Helium Pycnometer Method)
SIGNIFICANCE AND USE
5.1 This test method is useful in characterizing pitches as one element in establishing uniformity of shipments and sources of supply. With this method, the density is determined to two decimal places, which is sufficient for most applications. If a more precise measurement is required (three decimal places), use Test Methods D2320 or D71.
SCOPE
1.1 This test method covers the determination of pitch density by helium pycnometer. It is applicable at a range of room temperatures of 15 to 35°C.
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 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
Relations
Buy Standard
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation: D4892 − 14
Standard Test Method for
1
Density of Solid Pitch (Helium Pycnometer Method)
This standard is issued under the fixed designation D4892; 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 U.S. Department of Defense.
1. Scope* 4. Summary of Test Method
4.1 The sample is pulverized and screened to a given
1.1 This test method covers the determination of pitch
fraction, then the volume of a weighed portion of the fraction
density by helium pycnometer. It is applicable at a range of
is determined using a helium pycnometer.
room temperatures of 15 to 35°C.
1.2 The values stated in SI units are to be regarded as
5. Significance and Use
standard. No other units of measurement are included in this
5.1 This test method is useful in characterizing pitches as
standard.
one element in establishing uniformity of shipments and
1.3 This standard does not purport to address all of the
sources of supply. With this method, the density is determined
safety concerns, if any, associated with its use. It is the
totwodecimalplaces,whichissufficientformostapplications.
responsibility of the user of this standard to establish appro-
If a more precise measurement is required (three decimal
priate safety and health practices and determine the applica-
places), use Test Methods D2320 or D71.
bility of regulatory limitations prior to use.
6. Apparatus
2. Referenced Documents
3
6.1 Helium Pycnometer.
2
2.1 ASTM Standards:
6.2 Balance, capable of weighing a 150-g specimen to
D71 Test Method for Relative Density of Solid Pitch and
within 1 mg.
Asphalt (Displacement Method)
6.3 Sieves, U.S. Standard 2.36-mm (No. 8), 600-µm (No.
D2320 Test Method for Density (Relative Density) of Solid
30), conforming to Specification E11.
Pitch (Pycnometer Method)
D2962 Practice for Calculating Volume-Temperature Cor-
6.4 Thermometer, for measuring room temperature.
rection For Coal-Tar Pitches
7. Bulk Sampling
D4296 Practice for Sampling Pitch
E11 Specification for Woven Wire Test Sieve Cloth and Test
7.1 Samples from shipments shall be taken in accordance
Sieves
with Practice D4296 and shall be free of foreign substances.
3. Terminology
8. Dehydration
3.1 Definitions of Terms Specific to This Standard:
8.1 All bulk samples suspected of having free moisture
3.1.1 density, as determined by this test method— the mass should be air-dried or oven-dried at 50°C in a convection or
per unit volume and shall be reported as follows: forced-air oven before analyzing.
3
density, 25°C, g/cm grams per cubic centimeter (1)
~ !
9. Preparation of Test Specimen
9.1 Crush a 50 to 200-g representative portion of the dry
pitch until all of it passes the 2.36 mm (No. 8 sieve). Avoid
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
SubcommitteeD02.05onPropertiesofFuels,PetroleumCokeandCarbonMaterial.
3
Current edition approved May 1, 2014. Published May 2014. Originally Helium pycnometers available from the following suppliers have been found
approved in 1989. Last previous edition approved in 2009 as D4892 – 89 (2009). satisfactory for this purpose: (a) Beckman 2500 Harbor Blvd., Fullerton, CA, (b)
DOI: 10.1520/D4892-14. Micromeritics, 5680 Goshen Springs Rd., Norcross, GA, and (c) Quantachrome, 5
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Aerial Way, Syosset, NY. If you are aware of alternative suppliers, please provide
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM this information to ASTM International Headquarters. Your comments will receive
1
Standards volume information, refer to the standard’s Document Summary page on careful consideration at a meeting of the responsible technical committee , which
the ASTM website. you may attend.
*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 ----------------------
D4892 − 14
TABLE 1 Volume Correction Factors Versus Measurement
grinding the pitch. Remove the fines by screening through the
Temperature
600 µm (No. 30 sieve) and use the pitch retained on this sieve
Measurement Temperature, °C Correction Factor
as the test specimen.
15 1.005
16 1.004
10. Calibration of Helium Pycnometer
17 1.004
18 1.003
10.1 Calibrate daily or before using, following instrument
19 1.003
manufacturer’s instructions.
20 1.002
21 1.002
22 1.001
...
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: D4892 − 89 (Reapproved 2009) D4892 − 14
Standard Test Method for
1
Density of Solid Pitch (Helium Pycnometer Method)
This standard is issued under the fixed designation D4892; 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 U.S. Department of Defense.
1. Scope Scope*
1.1 This test method covers the determination of pitch density by helium pycnometer. It is applicable at a range of room
temperatures of 15 to 35°C.
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 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D71 Test Method for Relative Density of Solid Pitch and Asphalt (Displacement Method)
D2320 Test Method for Density (Relative Density) of Solid Pitch (Pycnometer Method)
D2962 Practice for Calculating Volume-Temperature Correction For Coal-Tar Pitches
D4296 Practice for Sampling Pitch
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 density, as determined by this test method— the mass per unit volume and shall be reported as follows:
3
density, 25°C, g/cm ~grams per cubic centimeter! (1)
4. Summary of Test Method
4.1 The sample is pulverized and screened to a given fraction, then the volume of a weighed portion of the fraction is determined
using a helium pycnometer.
5. Significance and Use
5.1 This test method is useful in characterizing pitches as one element in establishing uniformity of shipments and sources of
supply. With this method, the density is determined to two decimal places, which is sufficient for most applications. If a more
precise measurement is required (three decimal places), use Test Methods D2320 or D71.
6. Apparatus
3
6.1 Helium Pycnometer.
6.2 Balance, capable of weighing a 150-g specimen to within 1 mg.
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 April 15, 2009May 1, 2014. Published July 2009 May 2014. Originally approved in 1989. Last previous edition approved in 20042009 as
D4892–89(2004).D4892 – 89 (2009). DOI: 10.1520/D4892-89R09.10.1520/D4892-14.
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
Helium pycnometers available from the following suppliers have been found satisfactory for this purpose: (a) Beckman 2500 Harbor Blvd., Fullerton, CA, (b)
Micromeritics, 5680 Goshen Springs Rd., Norcross, GA, and (c) Quantachrome, 5 Aerial Way, Syosset, NY. If you are aware of alternative suppliers, please provide this
1
information to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee , which you may
attend.
*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 ----------------------
D4892 − 14
6.3 Sieves, U.S. Standard 2.36-mm (No. 8), 600-μm (No. 30), conforming to Specification E11.
6.4 Thermometer, for measuring room temperature.
7. Bulk Sampling
7.1 Samples from shipments shall be taken in accordance with Practice D4296 and shall be free of foreign substances.
8. Dehydration
8.1 All bulk samples suspected of having free moisture should be air-dried or oven-dried at 50°C in a convection or forced-air
oven before analyzing.
9. Preparation of Test Specimen
9.1 Crush a 50 to 200-g representative portion of the dry pitch until all of it passes the 2.36 mm (No. 8 sieve). Avoid grinding
the pitch. Remove the fines by screening through the 600 μ
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.