ASTM D8413-22

Standard Guide for Measuring the Water Pore Volume of Catalytic Materials by Centrifuge

SIGNIFICANCE AND USE
5.1 This guide provides an alternative way to measure the porosity of catalytic materials without the use of mercury porosimetry. It is useful for research and development as well as quality control purposes. (See Test Methods D4284 and D6761.)
SCOPE
1.1 This guide describes how to measure the pore volume of catalytic materials by water immersion with the excess water removed with a centrifuge. The measured pore volume is converted to the dry pore volume by using the loss on ignition (LOI) of the material. It is generally applicable to both powdered materials and particles greater than about 1 mm.  
1.2 Units—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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

• Status: Published
• Publication Date: 31-Mar-2022
• ICS: 19.120 - Particle size analysis. Sieving
• ICS: 71.040.30 - Chemical reagents
• Technical Committee: D32 - Catalysts
• Drafting Committee: D32.02 - Physical-Mechanical Properties

Standards Content (Sample)

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: D8413 − 22
Standard Guide for
Measuring the Water Pore Volume of Catalytic Materials by
1
Centrifuge
This standard is issued under the fixed designation D8413; 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.
3
1. Scope 2.2 Other ASTM Documents:
STP 447A Manual on Test Sieving Methods
1.1 This guide describes how to measure the pore volume of
catalytic materials by water immersion with the excess water
3. Terminology
removed with a centrifuge. The measured pore volume is
3.1 Definitions—See Terminology D3766.
converted to the dry pore volume by using the loss on ignition
(LOI) of the material. It is generally applicable to both
3.2 Definitions of Terms Specific to This Standard:
powdered materials and particles greater than about 1 mm.
3.2.1 water pore volume, n—also known as the pore volume
determined by water absorption, is a measure of the porosity of
1.2 Units—The values stated in SI units are to be regarded
a catalytic material.
as standard. No other units of measurement are included in this
standard.
4. Summary of Guide
1.3 This standard does not purport to address all of the
4.1 This guide measures pore volume by water immersion
safety concerns, if any, associated with its use. It is the
withtheexcesswaterremovedwithacentrifuge.Themeasured
responsibility of the user of this standard to establish appro-
pore volume is converted to the dry pore volume by using the
priate safety, health, and environmental practices and deter-
LOI of the material.
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
5. Significance and Use
dance with internationally recognized principles on standard-
5.1 This guide provides an alternative way to measure the
ization established in the Decision on Principles for the
porosity of catalytic materials without the use of mercury
Development of International Standards, Guides and Recom-
porosimetry. It is useful for research and development as well
mendations issued by the World Trade Organization Technical
as quality control purposes. (See Test Methods D4284 and
Barriers to Trade (TBT) Committee.
D6761.)
2. Referenced Documents
6. Interferences
2
2.1 ASTM Standards:
6.1 There are no known interferences. This method cannot
D3766 Terminology Relating to Catalysts and Catalysis
be used for materials that react with or dissolve in water.
D4284 Test Method for Determining Pore Volume Distribu-
tion of Catalysts and Catalyst Carriers by Mercury Intru-
7. Apparatus
sion Porosimetry
D6761 Test Method for Determination of the Total Pore 7.1 Balance, accurate to nearest 0.0001 g.
Volume of Catalysts and Catalyst Carriers
7.2 Centrifuge Tubes, custom made according to the draw-
E1272 Specification for Laboratory Glass Graduated Cylin-
ingsshowninFigs.1and2.Fig.1depictsthetubedesignedfor
ders
particles. As drawn, Fig. 1 illustrates a holder for measuring
>~5 mm particles as the hole sizes shown are 5 mm. The hole
sizes used must be small enough to retain the sample when
1
This guide is under the jurisdiction ofASTM Committee D32 on Catalysts and
analyzing smaller pieces. Fig. 2 describes the tube used for
is the direct responsibility of Subcommittee D32.02 on Physical-Mechanical
Properties. powders. These tubes can be fabricated from any suitable
Current edition approved April 1, 2022. Published April 2022. Originally
material, including glasses such as borosilicate glass or plastics
approved in 2021. Last previous edition approved in 2021 as D8413 – 21. DOI:
such as nylon.
10.1520/D8413-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from theASTM website, www.astm.org, or contactASTM Customer
the ASTM website. Service at [e-mail].
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
1

---------------------- Page: 1 ----------------------
D8413 − 22
NOTE—These tubes can be fabricated from any suitable material, including glasses such as borosilicate glass or plastics such as nylon.
FIG. 1 Sample Holder for Particles >1 mm
7.3 Centrifuge, capable of a force of at least 456 G and 12. Calibration and Standardization
equipped with timer, speed control and shields, such as a
12.1 Follow the centr
...

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: D8413 − 21 D8413 − 22
Standard Guide for
Measuring the Water Pore Volume of Catalytic Materials by
1
Centrifuge
This standard is issued under the fixed designation D8413; 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 guide describes how to measure the pore volume of catalytic materials by water immersion with the excess water removed
with a centrifuge. The measured pore volume is converted to the dry pore volume by using the loss on ignition (LOI) of the
material. It is generally applicable to both powdered materials and particles greater than about 1 mm.
1.2 Units—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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.4 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:
D3766 Terminology Relating to Catalysts and Catalysis
D4284 Test Method for Determining Pore Volume Distribution of Catalysts and Catalyst Carriers by Mercury Intrusion
Porosimetry
D6761 Test Method for Determination of the Total Pore Volume of Catalysts and Catalyst Carriers
E1272 Specification for Laboratory Glass Graduated Cylinders
3
2.2 Other ASTM Documents:
STP 447A Manual on Test Sieving Methods
3. Terminology
3.1 Definitions—See Terminology D3766.
3.2 Definitions of Terms Specific to This Standard:
1
This guide is under the jurisdiction of ASTM Committee D32 on Catalysts and is the direct responsibility of Subcommittee D32.02 on Physical-Mechanical Properties.
Current edition approved Oct. 1, 2021April 1, 2022. Published November 2021April 2022. Originally approved in 2021. Last previous edition approved in 2021 as
D8413 – 21. DOI: 10.1520/D8413-21.10.1520/D8413-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail].
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D8413 − 22
3.2.1 water pore volume, n—also known as the pore volume determined by water absorption, is a measure of the porosity of a
catalytic material.
4. Summary of Guide
4.1 This guide measures pore volume by water immersion with the excess water removed with a centrifuge. The measured pore
volume is converted to the dry pore volume by using the LOI of the material.
5. Significance and Use
5.1 This guide provides an alternative way to measure the porosity of catalytic materials without the use of mercury porosimetry.
It is useful for research and development as well as quality control purposes. (See Test Methods D4284 and D6761.)
6. Interferences
6.1 There are no known interferences. This method cannot be used for materials that react with or dissolve in water.
7. Apparatus
7.1 Balance, accurate to nearest 0.0001 g.
7.2 Centrifuge Tubes, custom made according to the drawings using shown in Figs. 1 and 2. Fig. 1 depicts the tube described in
designed for particles. As drawn, Fig. 1 for particles >~1 mm or the tube described in illustrates a holder for measuring >~5 mm
particles as the hole sizes shown are 5 mm. The hole sizes used must be small enough to retain the sample when analyzing smaller
pieces. Fig. 2 describes the tube used for powders. These tubes can be fabricated from any suitable material, including glasses such
as borosilicate glass or plastics such as nylon.
7.3 Centrifuge, capable of a force of at least 456 G and equipped with timer, speed control and shi
...