ASTM D4164-03

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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2003
• ICS: 71.040.30 - Chemical reagents
• Technical Committee: D32 - Catalysts
• Drafting Committee: D32.02 - Physical-Mechanical Properties

Relations

• Replaces: ASTM D4164-99 - Standard Test Method for Mechanically Tapped Packing Density of Formed Catalyst and Catalyst Carriers
• Effective Date: 01-Oct-2003
• Replaced By: ASTM D4164-03(2008) - Standard Test Method for Mechanically Tapped Packing Density of Formed Catalyst and Catalyst Carriers
• Effective Date: 01-Apr-2008
• Referred By: ASTM D7481-18 - Standard Test Methods for Determining Loose and Tapped Bulk Densities of Powders using a Graduated Cylinder
• Effective Date: 01-Oct-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D4164–03
Standard Test Method for
Mechanically Tapped Packing Density of Formed Catalyst
1
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 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
6.3 Tapping Device, consisting of a base-plate with worm
safety concerns, if any, associated with its use. It is the
drive, reduction ratio 15:1, cam shaft speed of 250 r/min,
responsibility of the user of this standard to establish appro-
1
tapping stroke travel ⁄8 in. (3.2 mm).
priate safety and health practices and determine the applica-
6.4 Four Digit Adjustable Counter, which can be preset to
bility of regulatory limitations prior to use.
deliver any number of taps between 1 and 9999.
2. Referenced Documents 6.5 Desiccator, with a desiccant grade molecular sieve such
2
as No. 4A.
2.1 ASTM Standards:
6.6 Balance having a sensitivity of 0.1 g.
D 3766 Terminology Relating to Catalysts and Catalysis
6.7 Drying Oven.
E 177 Practice for Use of the Terms Precision and Bias in
ASTM Test Methods
7. Procedure
E 456 Terminology Relating to Quality and Statistics
7.1 Heat an adequate sample(s) at 400 6 15°C for not less
E 691 Practice for Conducting an Interlaboratory Study to
than 3 h. Normally, this treatment can take place in air.
Determine the Precision of a Test Method
However, in the case of materials that might react with air at
3. Terminology elevated temperatures (such as prereduced catalysts) the heat
treatment should take place in an inert atmosphere. After
3.1 Definitions—See Terminology D 3766.
heating, cool the test sample(s) in a desiccator or other suitable
4. Summary of Test Method container to eliminate the possibility of moisture adsorption
prior to testing.
4.1 A preconditioned sample of formed catalyst or catalyst
carrier is tapped in a graduated cylinder. The mechanically
NOTE 1—These conditions may not be appropriate for all materials.
tappedpackingdensityisdeterminedfromtheknownmassand
NOTE 2—Since many catalyst formulations are strong adsorbents, the
use of No. 4Aindicating (cobalt-treated) molecular sieves as a desiccating
tapped volume.
medium is suggested. The desiccant should be regenerated at 493 K
5. Significance and Use (220°C) to 533 K (260°C), as required.
5.1 This test method is to be used for measuring the 7.2 Pour between 240 and 250 mL of the test specimen
mechanically tapped packing density of formed particles that
carefully into the tared graduated cylinder using a funnel. To
ensure proper level, rotate the funnel while pouring the test
specimen. Weigh immediately to the nearest 0.1 g.
1
This test method is under the jurisdiction of ASTM Committee D32 on
7.3 Preset the counter to
...