ASTM D4164-03(2008)
(Test Method)Standard Test Method for Mechanically Tapped Packing Density of Formed Catalyst and Catalyst Carriers
Standard Test Method for Mechanically Tapped Packing Density of Formed Catalyst and Catalyst Carriers
SIGNIFICANCE AND USE
This test method is to be used for measuring the mechanically tapped packing density of formed particles that will not break up during sampling, filling, or tapping of the measuring cylinder under test conditions.
SCOPE
1.1 This test method covers the determination of the mechanically tapped density of formed catalyst and catalyst carriers. For the purpose of this test method, catalyst particles are defined as extrudates, spheres, or formed pellets of 0.8 to 4.8-mm (1/32 to 3/16-in.) nominal diameter.
1.2 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.
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Designation: D4164 − 03(Reapproved 2008)
Standard Test Method for
Mechanically Tapped Packing Density of Formed Catalyst
and Catalyst Carriers
This standard is issued under the fixed designation D4164; 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 will not break up during sampling, filling, or tapping of the
measuring cylinder under test conditions.
1.1 This test method covers the determination of the me-
chanically tapped density of formed catalyst and catalyst
6. Apparatus
carriers. For the purpose of this test method, catalyst particles
6.1 Graduated Cylinder, capacity 250 mL with a base
are defined as extrudates, spheres, or formed pellets of 0.8 to
designed to accommodate the cylinder holder.
1 3
4.8-mm ( ⁄32 to ⁄16-in.) nominal diameter.
6.2 Cylinder Holder, weighing 1 lb (454 g).
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 6.3 Tapping Device, consisting of a base-plate with worm
responsibility of the user of this standard to establish appro- drive, reduction ratio 15:1, cam shaft speed of 250 r/min,
priate safety and health practices and determine the applica- tapping stroke travel ⁄8 in. (3.2 mm).
bility of regulatory limitations prior to use.
6.4 Four Digit Adjustable Counter, which can be preset to
deliver any number of taps between 1 and 9999.
2. Referenced Documents
6.5 Desiccator, with a desiccant grade molecular sieve such
2.1 ASTM Standards:
as No. 4A.
D3766 Terminology Relating to Catalysts and Catalysis
E177 Practice for Use of the Terms Precision and Bias in
6.6 Balance having a sensitivity of 0.1 g.
ASTM Test Methods
6.7 Drying Oven.
E456 Terminology Relating to Quality and Statistics
7. Procedure
E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
7.1 Heat an adequate sample(s) at 400 6 15°C for not less
than 3 h. Normally, this treatment can take place in air.
3. Terminology
However, in the case of materials that might react with air at
3.1 Definitions—See Terminology D3766.
elevated temperatures (such as prereduced catalysts) the heat
treatment should take place in an inert atmosphere. After
4. Summary of Test Method
heating, cool the test sample(s) in a desiccator or other suitable
4.1 A preconditioned sample of formed catalyst or catalyst
container to eliminate the possibility of moisture adsorption
carrier is tapped in a graduated cylinder. The mechanically
prior to testing.
tappedpackingdensityisdeterminedfromtheknownmassand
NOTE 1—These conditions may not be appropriate for all materials.
tapped volume.
NOTE 2—Since many catalyst formulations are strong adsorbents, the
use of No. 4Aindicating (cobalt-treated) molecular sieves as a desiccating
5. Significance and Use
medium is suggested. The desiccant should be regenerated at 493 K
5.1 This test method is to be used for measuring the (220°C) to 533 K (260°C), as required.
mechanically tapped packing density of formed particles that
7.2 Pour between 240 and 250 mL of the test specimen
carefully into the tared graduated cylinder using a funnel. To
This test method is under the jurisdiction of ASTM Committee D32 on ensure proper level, rotate the funnel while pouring the test
Catalysts and is the direct responsibility of Subcommittee D32.02 on Physical-
specimen. Weigh immediately to the nearest 0.1 g.
Mechanical
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D4164–99 Designation: D 4164 – 03 (Reapproved 2008)
Standard Test Method for
Mechanically Tapped Packing Density of Formed Catalyst
and Catalyst Carriers
This standard is issued under the fixed designation D 4164; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the determination of the mechanically tapped density of formed catalyst and catalyst carriers. For
the purpose of this test method, catalyst particles are defined as extrudates, spheres, or formed pellets of 0.8 to 4.8-mm ( ⁄32 to
⁄16-in.) nominal diameter.
1.2 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
2.1 ASTM Standards:
D 3766 Terminology Relating to Catalysts and Catalysis
E 177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E 456 Terminology Relating to Quality and Statistics
E 691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Summary of Test Method
3.1A preconditioned sample of formed catalyst or catalyst carrier is tapped in a graduated cylinder. The mechanically tapped
packing density is determined from the known weight and tapped volume. Terminology
3.1 Definitions—See Terminology D 3766.
4. Significance and Use
4.1This test method is to be used for measuring the mechanically tapped packing density of formed particles that will not break
up during sampling, filling, or tapping of the measuring cylinder under test conditions. Summary of Test Method
4.1 A preconditioned sample of formed catalyst or catalyst carrier is tapped in a graduated cylinder. The mechanically tapped
packing density is determined from the known mass and tapped volume.
5. Significance and Use
5.1 This test method is to be used for measuring the mechanically tapped packing density of formed particles that will not break
up during sampling, filling, or tapping of the measuring cylinder under test conditions.
6. Apparatus
5.1
6.1 Graduated Cylinder, capacity 250 mL.
5.2, capacity 250 mL with a base designed to accommodate the cylinder holder.
6.2 Cylinder Holder, weighing 1 lb (454 g).
5.3
This test method is under the jurisdiction of ASTM Committee D-32 on Catalysts and is the direct responsibility of Subcommittee D32.02 on Physical-Mechanical
Properties.
e1
Current edition approved Oct. 10, 1999. Published December 1999.Originally published as D 4164 - 88. Last previous edition D 4164 - 88 (1994) .
This test method 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 April 1, 2008. Published May 2008. Originally approved in 1988. Last previous edition approved in 2003 as D 4164–03.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 14.02.volume information, refer to the standard’s Document Summary page on the ASTM website.
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D 4164 – 03 (2008)
6.3 Tapping Device, consisting of a base-plate with worm drive, reduction ratio 15:1, cam shaft speed of 250 r/min, tapping
stroke travel ⁄8 in. (3.2 mm).
5.46.4 Four Digit Adjustable Counter , which can be preset to deliver any number of taps between 1 and 9999.
5.5
6.5 Desiccator, with
...
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