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ASTM C493-98

(Test Method)

Standard Test Method for Bulk Density and Porosity of Granular Refractory Materials by Mercury Displacement (Withdrawn 2002)

Standard Test Method for Bulk Density and Porosity of Granular Refractory Materials by Mercury Displacement (Withdrawn 2002)

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1.1 This test method covers the determination of bulk density and total porosity of granular materials, whether susceptible to hydration or not.  Note 1-A test method employing water displacement, which is limited to materials not susceptible to hydration, is given in Test Method C357.
1.2 This standard does not purport to address all of the safety problems, 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. This test method involves the use of the hazardous material mercury.

General Information

Status
Withdrawn
Publication Date
09-Mar-1998
Withdrawal Date
10-Nov-2002
ICS
81.080 - Refractories
Technical Committee
C08 - Refractories
Drafting Committee
C08.03 - Physical Properties
Current Stage
Ref Project

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ASTM C493-98 - Standard Test Method for Bulk Density and Porosity of Granular Refractory Materials by Mercury Displacement (Withdrawn 2002)ASTM C493-98 - Standard Test Method for Bulk Density and Porosity of Granular Refractory Materials by Mercury Displacement (Withdrawn 2002)
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ASTM C493-98 - Standard Test Method for Bulk Density and Porosity of Granular Refractory Materials by Mercury Displacement (Withdrawn 2002)
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Standards Content (Sample)

Designation: C 493 – 98
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Bulk Density and Porosity of Granular Refractory Materials
1
by Mercury Displacement
This standard is issued under the fixed designation C 493; 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 method in purchasing contracts or agreements and as a base for
development of more rapid, secondary test methods for use in
1.1 This test method covers the determination of bulk
quality control on manufactured refractory raw materials.
density and total porosity of granular materials, whether
3.5 Fundamental assumptions inherent in this test method
susceptible to hydration or not.
are that the sample is representative of the material in general
NOTE 1—A test method employing water displacement, which is
and the particle size of the sample is within the range specified
limited to materials not susceptible to hydration, is given in Test Method
by the test method. Deviation from any of these assumptions
C 357.
negates the usefulness of the test results.
1.2 This standard does not purport to address all of the
3.6 In interpreting the results of this test method, it must be
safety concerns, if any, associated with its use. It is the
recognized that the specific gravity of the material as well as
responsibility of the user of this standard to establish appro-
the porosity affects the value obtained for bulk density. Thus,
priate safety and health practices and determine the applica-
comparisons of results should only be made between like
bility of regulatory limitations prior to use. This test method
materials, or with full recognition of inherent differences
involves the use of the hazardous material mercury.
between the materials being compared.
2. Referenced Documents
4. Apparatus
2.1 ASTM Standards:
4.1 Mercury Volumeter, as shown in Fig. 1 and Fig. 2.
C 135 Test Method for True Specific Gravity of Refractory
4.1.1 The vacuum is not critical. It is used to help empty the
2
Materials by Water Immersion
sample chamber before filling so that a shorter length of rubber
C 357 Test Method for Bulk Density of Granular Refractory
tubing may be used.
2
Materials
4.1.2 A rubber band is snapped on hooks to hold units
E 11 Specification for Wire-Cloth Sieves for Testing Pur-
together while vibrating.
3
poses
4.2 Standard Sieves, No. 4 (4.75-mm) and No. 10 (2.00-
mm), conforming to Specification E 11.
3. Significance and Use
NOTE 2—The Nos. 4 and 10 ASTM sieves are equivalent to 4 and 9
3.1 Bulk density and porosity are properties that character-
mesh, respectively, of the Tyler Standard Series.
ize the quality or consistency of quality of granular refractory
4
4.3 Vibrating System, consisting of a vibrator with controls.
material when determining its suitability for usage.
3.2 This test method can be used as one of the process or
5. Preparation of Sample
quality control tests in the manufacture or mining of refractory
5.1 Remove the fraction retained on the No. 4 (4.75-mm)
grain raw materials. This test method can be used also for
sieve from the material to be tested, and crush it to pass a No.
evaluating the potential use of refractory grain raw materials.
4 sieve in a manner to obtain a maximum amount of coarse
3.3 This test method can be used to determine the consis-
material. Recombine with the portion passing the No. 4 sieve
tency of quality and the potential use of purchased refractory
and screen the resultant sample to remove all material passing
grain raw materials.
the No. 10 (2.00-mm) sieve.
3.4 This test method is a primary standard method and thus
5.1.1 If no material is retained on the No. 4 sieve, crushing
is suitable for use in specifications, quality control, and
is not necessary in the preparation of the sample; however,
research and development. It can also serve as a referee test
absence of this size in the original sample should be noted.
5.2 Thoroughly blend and dry the No. 4 to No. 10 sieve-size
1
This test method is under the jurisdiction of ASTM Committee C-8 on
specimen to a constant weight. In the case of hydratable
Refractories and is the direct responsibility of Subcommittee C08.03 on Physical
Tests and Properties.
Current edition approved March 10, 1998. Published Sept. 1998. Originally
4
published as C 493 – 68. Last previous edition C 493 – 93. A suitable vibrator is Syntron Model V-2-A, Style 2176, 115 V, 60 Hz, with a
2
Annual Book of ASTM Standards, Vol 15.01. controller, Syntron Type VC-2, Style 4593, 115 V, 60 Hz, ½ A max, available from
3
Annual Book of ASTM Standards, Vol 14.02. Syntron Div., 702 Lexington Ave., Homer City, PA 15748.
1

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