ASTM D4512-03(2013)e1
(Test Method)Standard Test Method for Vibrated Apparent Packing Density of Fine Catalyst and Catalyst Carrier Particles and Powder
Standard Test Method for Vibrated Apparent Packing Density of Fine Catalyst and Catalyst Carrier Particles and Powder
SIGNIFICANCE AND USE
4.1 This test method is for measuring the apparent packing density of catalyst or catalyst carrier powders that are smaller than 0.8 mm in diameter.
SCOPE
1.1 This test method covers the determination of the apparent packing density of fine catalyst and catalyst carrier powders smaller than 0.8 mm in diameter.
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.
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´1
Designation: D4512 − 03 (Reapproved 2013)
Standard Test Method for
Vibrated Apparent Packing Density of Fine Catalyst and
Catalyst Carrier Particles and Powder
This standard is issued under the fixed designation D4512; 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.
ε NOTE—Footnote 3 was updated editorially in May 2013.
1. Scope 5. Apparatus
1.1 This test method covers the determination of the appar-
5.1 Glass Cylinders, capacity 100 mL, feed and measuring.
entpackingdensityoffinecatalystandcatalystcarrierpowders
5.2 Vibrator, conventional hand-held, with hard rubber or
smaller than 0.8 mm in diameter.
metal impactor.
1.2 The values stated in SI units are to be regarded as
5.3 Feed Funnel, plastic, glass, or metal as shown in Fig. 1.
standard. No other units of measurement are included in this
5.4 Ring Stand, vibrator holder and clamps as shown in
standard.
Figs. 2 and 3.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5.5 Desiccator, with a desiccant grade molecular sieve such
responsibility of the user of this standard to establish appro-
as 4A.
priate safety and health practices and determine the applica-
5.6 Balance, having sensitivity of 0.1 g.
bility of regulatory limitations prior to use.
5.7 Drying Oven.
2. Referenced Documents
2 6. Procedure
2.1 ASTM Standards:
D3766 Terminology Relating to Catalysts and Catalysis 6.1 Heat an adequate amount of sample(s) at 400 6 15°C
E177 Practice for Use of the Terms Precision and Bias in for not less than 3 h. Normally, this treatment can take place in
ASTM Test Methods air; however, in the case of materials that might react with air
E456 Terminology Relating to Quality and Statistics at elevated temperatures (such as, prereduced catalysts) the
E691 Practice for Conducting an Interlaboratory Study to heat treatment shall take place in an inert atmosphere. After
Determine the Precision of a Test Method heating, cool the test sample(s) in a desiccator or other suitable
container to eliminate the possibility of moisture adsorption
3. Terminology prior to testing.
3.1 Definitions—See Terminology D3766.
NOTE 1—These conditions may not be appropriate for all materials.
NOTE 2—Since many catalyst formulations are strong adsorbents, the
use of 4A indicating (cobalt-treated) molecular sieve as a desiccating
4. Significance and Use
medium is suggested. The desiccant should be regenerated at 493 K
4.1 This test method is for measuring the apparent packing
(220°C) to 533 K (260°C), as required.
density of catalyst or catalyst carrier powders that are smaller
6.2 Fillafeedglasscylinderwith100mLoflooselypacked,
than 0.8 mm in diameter.
dried sample.
6.3 Turn on the vibrator and carefully add sample(s) to the
tared, measuring cylinder through the feed funnel.
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 March 1, 2013. Published March 2013. Originally
approved in 1985. Last previous edition approved in 2008 as D4512–03(2008). The sole source of supply of the vibrator known to the committee at this time
DOI: 10.1520/D4512-03R13E01. is Wahl Clipper Corp., Sterling, IL. They recommend their Model 4120 used at low
For referenced ASTM standards, visit the ASTM website, www.astm.org, or speed to replace their Model 4180, which is discontinued. If you are aware of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM alternative suppliers, please provide this information to ASTM International
Standards volume information, refer to the standard’s Document
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