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ASTM D4513-97(2001)e1

(Test Method)

Standard Test Method for Particle Size Distribution of Catalytic Materials by Sieving

Standard Test Method for Particle Size Distribution of Catalytic Materials by Sieving

SCOPE
1.1 This test method covers the determination of particle size distribution of catalytic powder material using a sieving instrument and is one of several found valuable for the measurement of particle size. This test method is particularly suitable for particles in the 20 to 420-μm range.
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
09-Mar-1997
ICS
19.120 - Particle size analysis. Sieving
Technical Committee
D32 - Catalysts
Drafting Committee
D32.02 - Physical-Mechanical Properties
Current Stage
Ref Project

Relations

Replaces
ASTM D4513-97 - Standard Test Method for Particle Size Distribution of Catalytic Materials by Sieving
Effective Date
10-Mar-1997
Replaced By
ASTM D4513-97(2006) - Standard Test Method for Particle Size Distribution of Catalytic Materials by Sieving
Effective Date
01-Apr-2006

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ASTM D4513-97(2001)e1 - Standard Test Method for Particle Size Distribution of Catalytic Materials by SievingASTM D4513-97(2001)e1 - Standard Test Method for Particle Size Distribution of Catalytic Materials by Sieving
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ASTM D4513-97(2001)e1 - Standard Test Method for Particle Size Distribution of Catalytic Materials by Sieving
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
e1
Designation:D4513–97 (Reapproved 2001)
Standard Test Method for
Particle Size Distribution of Catalytic Materials by Sieving
This standard is issued under the fixed designation D 4513; 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.
e NOTE—Section 5 was corrected editorially in October 2001.
1. Scope 5. Apparatus
1.1 This test method covers the determination of particle 5.1 Laboratory Sieving Instrument, automatic with timer
size distribution of catalytic powder material using a sieving preferred.
instrument and is one of several found valuable for the 5.2 U. S. Standard Sieves or equivalent, to include mi-
measurement of particle size. This test method is particularly crometers (mesh) 420(40), 250(60), 177(80), 149(100),
suitable for particles in the 20 to 420-µm range. 105(140), 74(200), 44(325) and electroformed 30 and 20
1.2 This standard does not purport to address all of the micrometers. Because of their superior uniformity and resis-
safety concerns, if any, associated with its use. It is the tance to distortion or damage during use, electroformed sieves,
responsibility of the user of this standard to establish appro- preferably with square holes, are recommended. Sieves with
priate safety and health practices and determine the applica- diameters between 6 and 10 cm are suggested.
bility of regulatory limitations prior to use. 5.3 Ultrasonic Cleaning Tank, 100 W.
5.4 Transmitted Light Microscope, 300 magnification, with
2. Referenced Documents
calibrated scale eyepiece.
2.1 ASTM Standards: 5.5 Heat Gun Dryer (hair dryer or equivalent).
E11 Specification for Wire-Cloth Sieves for Testing Pur-
5.6 Analytical Balance, capable of weighing to 0.001 g.
poses 5.7 Sample Splitter, Chute Type, or Spinning Riffler, with
E 161 Specification for Precision Electroformed Sieves
spinning riffler preferred.
(Square Opening Series)
6. Reagents
E 177 Practice for Use of the Terms Precision and Bias in
ASTM Test Methods 6.1 Antistatic Coating (record cleaning spray or equiva-
E 456 Terminology Relating to Quality and Statistics lent.)
6.2 Alcohol-Water Solution—One part ethanol to nine parts
3. Summary of Test Method
deionized or distilled water.
3.1 A50 % relative humidity-equilibrated sample of known
7. Sampling
weight is allowed to fractionate on a series of various size
sieves to allow the various particle sizes to be collected on 7.1 The sample must be free-flowing and homogeneous. If
successively smaller sieve openings. particle size segregation is apparent to either the eye or from
3.2 The sample fraction collected on each sieve of the series observation under a microscope, remix and resample the
is weighed and its fractional part of the original sample is material using the proper riffling procedure.
determined. 7.2 Equilibrate the sample at 20 to 25°C (68 to 77°F) in a
desiccator with a humidity level of 50 %. A 24-h period is
4. Significance and Use
usually sufficient.
4.1 This test method can be used to determine particle size
8. Calibration and Standardization
distributions of catalysts and supports for materials specifica-
tions, manufacturing control, and research and development 8.1 Prior to use, check all sieves for damage or improper
work. cleaning. If woven-wire sieves are used rather than the pre-
ferred electroformed sieves, it is especially important to
carefullyinspectthewiresurfaceforwear,misalignment,tears,
This test method is under the jurisdiction of ASTM Committee D32 on
creases, or separation along the edges.
Catalysts and is the direct responsibility of Subcommittee D32.02 on Physical-
Mechanical Properties.
NOTE 1—Specifications for wire cloth sieves are described in Specifi-
Current edition approved March 10, 1997. Published October 1997. Originally
cation E11 and specifications for electroformed sieves are described in
published as B 4513 – 85. Last previous edition B 4513 – 96.
Specification E 161.
Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
e1
D4513–97 (2001)
TABLE 1 Presentation of Data
9. Procedure
Weight of Sample Used, 0.610 g
9.1 Select appropriate sieves for the sample being analyzed,
Mesh Size Net Weight, Weight % Cumulative %
Sieve No.
typically the 149, 105, 74, 44, and 20-µm sieves.
microns g Sieve Fraction Passing
100 149 0.037 6.1 93.9
NOTE 2—For optimum results, the estimated particle size should be
140 105 0.034 5.6 88.3
determinedbymicroscopicexaminationat100–300X.Sievesmaythenbe
200 74 0.083 13.6 74.7
selected to cover the size range of the particles.
325 44 0.193 31.6 43.1
635 20 0.196 32.1 11.0
9.2 Clean 44 and 20-µm sieves prior to use in an ultrasonic
Pan 0.067 11.0
bath using a 10 % ethanol, 90 % water mixture. Dry the sieves
Total weight recovered 0.610 100.0
in a low temperature air jet (hair dryer or equivalent) and allow
to equilibrate at room temperature for 30 min before obtaining
the tare weights.
percentage of all coarser sieves, and subtracting the total from
9.3 Tare each sieve and the fines collector pan, recording
100 %. See Table 1 for an example of the calculations and
each weight to the nearest 0.001 g.
presentation.
9.4 After taring, moisten a sheet
...

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