ASTM C492-92(2017)e1

Standard Test Method for Hydration of Granular Dead-Burned Refractory Dolomite

SIGNIFICANCE AND USE
3.1 The hydration of dead-burned dolomite grains is an important aspect of both manufacturing and using such grains. Moisture from any source will cause the grains to partially disintegrate, eventually making the dead-burned dolomite unfit for use. This test method may prove useful for determining, in a relative manner, which grains are more resistant to hydration than others.  
3.2 Data from one laboratory might help in establishing internal limits for determining whether a particular batch of grain is suitable for refractory production. However, this test method takes great care to run, and is not recommended as a quality control test. Possibly, a specification might be developed between two parties if sufficient care in establishing the bias between the laboratories is carried out.
SCOPE
1.1 This test method covers the determination of the amount of hydration of a granular dead-burned refractory dolomite when exposed to moist air.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 31-Oct-2017
• ICS: 81.080 - Refractories
• Technical Committee: C08 - Refractories
• Drafting Committee: C08.04 - Chemical Behaviors

Relations

• Replaces: ASTM C492-92(2017) - Standard Test Method for Hydration of Granular Dead-Burned Refractory Dolomite
• Effective Date: 01-Nov-2017
• Replaced By: ASTM C492-92(2023) - Standard Test Method for Hydration of Granular Dead-Burned Refractory Dolomite
• Effective Date: 01-Nov-2023
• Refers: ASTM E11-13 - Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
• Effective Date: 01-Oct-2013
• Refers: ASTM C92-95(2010) - Standard Test Methods for Sieve Analysis and Water Content of Refractory Materials
• Effective Date: 01-Nov-2010
• Refers: ASTM E11-09e1 - Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
• Effective Date: 01-May-2009
• Refers: ASTM C92-95(2005) - Standard Test Methods for Sieve Analysis and Water Content of Refractory Materials
• Effective Date: 01-Dec-2005
• Refers: ASTM E11-04 - Standard Specification for Wire Cloth and Sieves for Testing Purposes
• Effective Date: 01-May-2004
• Refers: ASTM E11-95 - Standard Specification for Wire Cloth and Sieves for Testing Purposes
• Effective Date: 10-May-2001
• Refers: ASTM E11-01 - Standard Specification for Wire Cloth and Sieves for Testing Purposes
• Effective Date: 10-May-2001
• Refers: ASTM C92-95(1999) - Standard Test Methods for Sieve Analysis and Water Content of Refractory Materials
• Effective Date: 01-Jan-1999
• Referred By: ASTM C71-12(2018) - Standard Terminology Relating to Refractories
• Effective Date: 01-Nov-2017

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
´1
Designation: C492 − 92 (Reapproved 2017)
Standard Test Method for
Hydration of Granular Dead-Burned Refractory Dolomite
This standard is issued under the fixed designation C492; 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 removed editorially in November 2017.
1. Scope for use. This test method may prove useful for determining, in
a relative manner, which grains are more resistant to hydration
1.1 This test method covers the determination of the amount
than others.
of hydration of a granular dead-burned refractory dolomite
when exposed to moist air.
3.2 Data from one laboratory might help in establishing
internal limits for determining whether a particular batch of
1.2 The values stated in inch-pound units are to be regarded
grain is suitable for refractory production. However, this test
as the standard. The values given in parentheses are for
method takes great care to run, and is not recommended as a
information only.
quality control test. Possibly, a specification might be devel-
1.3 This standard does not purport to address all of the
oped between two parties if sufficient care in establishing the
safety concerns, if any, associated with its use. It is the
bias between the laboratories is carried out.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Apparatus
mine the applicability of regulatory limitations prior to use.
4.1 Sieve, ASTM No. 40 (425-µm) conforming to Specifi-
1.4 This international standard was developed in accor-
cation E11, with pan and cover.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4.2 Glass Petri Dishes, 95 by 20-mm.
Development of International Standards, Guides and Recom-
4.3 CirculatingHot-AirOven,capableofoperatingat220to
mendations issued by the World Trade Organization Technical
230 °F (104 to 110 °C).
Barriers to Trade (TBT) Committee.
4.4 Steam-Humidity Cabinet, to be maintained at 160 6
2. Referenced Documents
2 °F (71 6 1 °C) and 85 6 3 % humidity.
2.1 ASTM Standards:
4.5 Scale, having a capacity of 200 g, accurate to 0.02 g.
C92 Test Methods for Sieve Analysis and Water Content of
Refractory Materials
5. Sampling
E11 Specification for Woven Wire Test Sieve Cloth and Test
5.1 The sample used shall be quartered or riffled so that it is
Sieves
typical of the material being tested both in screen size and
oiling.All material passing the No. 40 (425-µm) sieve shall be
3. Significance and Use
removed from this sample by screening.All screening shall be
3.1 The hydration of dead-burned dolomite grains is an
done in accordance with Test Methods C92 for dry sieve
important aspect of both manufacturing and using such grains.
analysis.
Moisture from any source will cause the grains to partially
disintegrate, eventually making the dead-burned dolomite unfit
6. Procedure
6.1 Place a 100 6 0.1-g portion of the representative sample
retained on the No. 40 (425-µm) sieve sample in a 95 by
This test method is under the jurisdiction of ASTM Committee C08 on
20-mm Petri dish. Then place this dish in a hot-air oven for
Refractories and is the direct responsibility of Subcommittee C08.04 on Chemical
Behaviors.
⁄2 h at 220 to 230 °F (104 to 110 °C) to prevent condensation
Current edition approved Nov. 1, 2017. Published November 2017. Originally
of water on the sample when placed in a hot steam-humidity
approved in 1962. Last previous edition approved in 2017 as C492 – 92 (2017).
cabinet.
DOI: 10.1520/C0492-92R17E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2 Transfer the Petri dish containing the sample from the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
hot-air oven to the steam-humidity cabinet, and cover with a
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. glassplateatanangleof45°topreventdrippingonthesample.
Copyright © ASTM International, 100 Bar
...

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
´1
Designation: C492 − 92 (Reapproved 2017)
Standard Test Method for
Hydration of Granular Dead-Burned Refractory Dolomite
This standard is issued under the fixed designation C492; 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 removed editorially in November 2017.
1. Scope for use. This test method may prove useful for determining, in
a relative manner, which grains are more resistant to hydration
1.1 This test method covers the determination of the amount
than others.
of hydration of a granular dead-burned refractory dolomite
when exposed to moist air. 3.2 Data from one laboratory might help in establishing
internal limits for determining whether a particular batch of
1.2 The values stated in inch-pound units are to be regarded
grain is suitable for refractory production. However, this test
as the standard. The values given in parentheses are for
method takes great care to run, and is not recommended as a
information only.
quality control test. Possibly, a specification might be devel-
1.3 This standard does not purport to address all of the
oped between two parties if sufficient care in establishing the
safety concerns, if any, associated with its use. It is the
bias between the laboratories is carried out.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Apparatus
mine the applicability of regulatory limitations prior to use.
4.1 Sieve, ASTM No. 40 (425-µm) conforming to Specifi-
1.4 This international standard was developed in accor-
cation E11, with pan and cover.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4.2 Glass Petri Dishes, 95 by 20-mm.
Development of International Standards, Guides and Recom-
4.3 Circulating Hot-Air Oven, capable of operating at 220 to
mendations issued by the World Trade Organization Technical
230 °F (104 to 110 °C).
Barriers to Trade (TBT) Committee.
4.4 Steam-Humidity Cabinet, to be maintained at 160 6
2. Referenced Documents 2 °F (71 6 1 °C) and 85 6 3 % humidity.
2.1 ASTM Standards:
4.5 Scale, having a capacity of 200 g, accurate to 0.02 g.
C92 Test Methods for Sieve Analysis and Water Content of
Refractory Materials
5. Sampling
E11 Specification for Woven Wire Test Sieve Cloth and Test
5.1 The sample used shall be quartered or riffled so that it is
Sieves
typical of the material being tested both in screen size and
oiling. All material passing the No. 40 (425-µm) sieve shall be
3. Significance and Use
removed from this sample by screening. All screening shall be
3.1 The hydration of dead-burned dolomite grains is an
done in accordance with Test Methods C92 for dry sieve
important aspect of both manufacturing and using such grains.
analysis.
Moisture from any source will cause the grains to partially
disintegrate, eventually making the dead-burned dolomite unfit
6. Procedure
6.1 Place a 100 6 0.1-g portion of the representative sample
retained on the No. 40 (425-µm) sieve sample in a 95 by
This test method is under the jurisdiction of ASTM Committee C08 on
20-mm Petri dish. Then place this dish in a hot-air oven for
Refractories and is the direct responsibility of Subcommittee C08.04 on Chemical
Behaviors.
⁄2 h at 220 to 230 °F (104 to 110 °C) to prevent condensation
Current edition approved Nov. 1, 2017. Published November 2017. Originally
of water on the sample when placed in a hot steam-humidity
approved in 1962. Last previous edition approved in 2017 as C492 – 92 (2017).
cabinet.
DOI: 10.1520/C0492-92R17E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2 Transfer the Petri dish containing the sample from the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
hot-air oven to the steam-humidity cabinet, and cover with a
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. glass plate at an angle of 45° to prevent dripping on the sample.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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.
´1
Designation: C492 − 92 (Reapproved 2017) C492 − 92 (Reapproved 2017)
Standard Test Method for
Hydration of Granular Dead-Burned Refractory Dolomite
This standard is issued under the fixed designation C492; 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 removed editorially in November 2017.
1. Scope
1.1 This test method covers the determination of the amount of hydration of a granular dead-burned refractory dolomite when
exposed to moist air.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
C92 Test Methods for Sieve Analysis and Water Content of Refractory Materials
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Significance and Use
3.1 The hydration of dead-burned dolomite grains is an important aspect of both manufacturing and using such grains. Moisture
from any source will cause the grains to partially disintegrate, eventually making the dead-burned dolomite unfit for use. This test
method may prove useful for determining, in a relative manner, which grains are more resistant to hydration than others.
3.2 Data from one laboratory might help in establishing internal limits for determining whether a particular batch of grain is
suitable for refractory production. However, this test method takes great care to run, and is not recommended as a quality control
test. Possibly, a specification might be developed between two parties if sufficient care in establishing the bias between the
laboratories is carried out.
4. Apparatus
4.1 Sieve, ASTM No. 40 (425-μm) (equivalent to a 35-mesh Tyler Standard Series) conforming to Specification E11, with pan
and cover.
4.2 Glass Petri Dishes, 95 by 20-mm.
4.3 Circulating Hot-Air Oven, capable of operating at 220 to 230 °F (104 to 110 °C).
4.4 Steam-Humidity Cabinet, to be maintained at 160 6 2 °F (71 6 1 °C) and 85 6 3 % humidity.
4.5 Scale, having a capacity of 200 g, accurate to 0.02 g.
This test method is under the jurisdiction of ASTM Committee C08 on Refractories and is the direct responsibility of Subcommittee C08.04 on Chemical Behaviors.
Current edition approved Nov. 1, 2017. Published November 2017. Originally approved in 1962. Last previous edition approved in 20132017 as C492 – 92 (2013).(2017).
DOI: 10.1520/C0492-92R17.10.1520/C0492-92R17E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
C492 − 92 (2017)
5. Sampling
5.1 The sample used shall be quartered or riffled so that it is typical of the material being tested both in screen size and oiling.
All material passing the No. 40 (425-μm) sieve shall be removed from this sample by screening. All screening shall be done in
accordance with Test Methods C92 for dry sieve analysis.
6. Procedure
6.1 Place a 100 6 0.1-g portion of the representative sample retained on the No. 40 (425-μm) sieve sample in a 95 by 20-mm
Petri dish. Then place this dish in a hot-air oven for ⁄2 h at 220 to 230 °F (104 to 110 °C) to prevent condensation of water on
the sample when placed in a hot steam-humidity cabinet.
6.2 Transfer the Petri dish containing the sample
...