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ASTM D6354-98(2003)

(Guide)

Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production

Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production

SIGNIFICANCE AND USE
Core sampling is an acceptable way of obtaining a test specimen without destroying the usefulness of a cathode block.
4.1.1 Test specimens obtained by this guide can be used by producers and users of cathode blocks for the purpose of conducting the tests in Note 1 to obtain comparative physical properties.
Sampling shall not weaken the cathode or increase the likelihood of premature failure. Extreme care shall be exercised when taking vertically drilled samples.
SCOPE
1.1 This sampling guide was developed for carbon cathode blocks used in the production of aluminum, and details procedures for taking test samples from single cathode blocks. It covers equipment and procedures for obtaining samples from cathode blocks in a manner that does not destroy the block or prevent its subsequent use as originally intended. However, the user must determine the subsequent use of the sampled cathode blocks. Preferred locations for taking samples from single units of cathodes are covered in this guide.
1.1.1 Information for sampling of shaped refractory products, in general, is given in ISO 5022. This standard details the statistical basis for sampling plans for acceptance testing of a consignment or lot. Cathode blocks used in the production of aluminum have specific requirements of sampling, and while the staistical basis or sampling given in ISO 5022 applies, further or modified requirements may, also, apply.
1.2 SI units are the standard in this guide.
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.  
Note 1-The following ASTM standards are noted as sources of useful information: Test Methods C559, C611, C651, C747, C1025, C1039, and E1225.

General Information

Status
Historical
Publication Date
31-Oct-2003
ICS
77.020 - Production of metals
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.05 - Properties of Fuels, Petroleum Coke and Carbon Material
Current Stage
Ref Project

Relations

Replaces
ASTM D6354-98 - Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production
Effective Date
01-Nov-2003
Replaced By
ASTM D6354-98(2008) - Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production
Effective Date
15-Oct-2008
Referred By
ASTM D6559-22 - Standard Test Method for Determination of Thermogravimetric (TGA) Air Reactivity of Baked Carbon Anodes and Cathode Blocks
Effective Date
01-Nov-2003
Referred By
ASTM D6558-22 - Standard Test Method for Determination of TGA CO<inf>2</inf> Reactivity of Baked Carbon Anodes and Cathode Blocks
Effective Date
01-Nov-2003

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ASTM D6354-98(2003) - Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum ProductionASTM D6354-98(2003) - Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production
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ASTM D6354-98(2003) - Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production
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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
An American National Standard
Designation:D6354–98 (Reapproved 2003)
Standard Guide for
Sampling Plan and Core Sampling of Carbon Cathode
Blocks Used in Aluminum Production
This standard is issued under the fixed designation D 6354; 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
1.1 This guide covers sampling of carbon cathode blocks
used in the production of aluminum, and details procedures for
taking test samples from single cathode blocks. It covers
equipment and procedures for obtaining samples from cathode
blocks in a manner that does not destroy the block or prevent
its subsequent use as originally intended. However, the user
must determine the subsequent use of the sampled cathode
blocks.Preferredlocationsfortakingsamplesfromsingleunits
of cathodes are covered in this guide.
1.1.1 Information for sampling of shaped refractory prod-
ucts, in general, is given in ISO 5022. This standard details the
statistical basis for sampling plans for acceptance testing of a
consignment or lot. Cathode blocks used in the production of
aluminum have specific requirements of sampling, and while
the statistical basis for sampling given in ISO 5022 applies,
further or modified requirements may also apply.
1.2 The values stated in SI units are to be regarded as the
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 appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
NOTE 1—The followingASTM standards are noted as sources of useful
information: Test Methods C 559,C611, C 651, C 747, C 1025, C 1039,
and C 1225.
2. Referenced Documents
FIG. 1 Typical Core Drill Bit
2.1 ASTM Standards:
C 651 Test Method for Flexural Strength of Manufactured
C 559 Test Methods for Bulk Density by Physical Measure-
Carbon and GraphiteArticles Using Four-Point Loading at
ments of Manufactured Carbon and Graphite Articles
Room Temperature
C611 Test Method for Electrical Resistivity of Manufac-
C 747 Test Method for Moduli of Elasticity and Fundamen-
tured Carbon and Graphite Articles at Room Temperature
tal Frequencies of Carbon and Graphite Materials by Sonic
Resonance
C 1025 Test Method for Modulus of Rupture in Bending of
This guide is under the jurisdiction of ASTM Committee D02 on Petroleum
Products and Lubricants and is the direct responsibility of Subcommittee D02.05 on
Electrode Graphite
Properties of Fuels, Petroleum Coke and Carbon Material.
C 1039 Test Methods for Apparent Porosity, Apparent Spe-
Current edition approved Nov. 1, 2003. Published November 2003. Originally
cific Gravity, and Bulk Density of Graphite Electrodes
approved in 1998. Last previous edition approved in 1998 as D 6345–98.
C 1225 Test Method for Thermal Conductivity of Solids by
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Means of the Guarded-Comparative-Longitudinal Heat
Standards volume information, refer to the standard’s Document Summary page on
Flow Technique
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D6354–98 (2003)
FIG. 2 Sampling from Single Units Produced Without Slot
FIG. 3 Sampling from Single Units Produced with Slot
2.2 ISO Standards: 4. Significance and Use
ISO 8007-1 Carbonaceous materials used in the production
4.1 Core sampling is an acceptable way of obtaining a test
of aluminum - Cathodic blocks - Sampling plan and
specimen without destroying the usefulness of a cathode block.
sampling from single cathodic blocks
4.1.1 Test specimens obtained by this guide can be used by
ISO 5022 Shapedrefractoryproducts-Samplingandaccep-
producers and users of cathode blocks for the purpose of
tance testing
conducting the tests in Note 1 to obtain comparative physical
3. Terminology properties.
3.1 Definitions: 4.2 Sampling shall not weaken the cathode or increase the
likelihood of premature failure. Extreme care shall be exer-
3.1.1 block—a carbon cathode, a single unit.
3.1.2 sample—the portion of carbon obtained from
...

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Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production

SIGNIFICANCE AND USE
4.1 Core sampling is an acceptable way of obtaining a test specimen without destroying the usefulness of a cathode block.  
4.1.1 Test specimens obtained by this guide can be used by producers and users of cathode blocks for the purpose of conducting the tests in Note 1 to obtain comparative physical properties.  
4.2 Sampling shall not weaken the cathode block or increase the likelihood of premature failure. Extreme care shall be exercised when taking vertically drilled samples.
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1.1.1 Information for sampling of shaped refractory products, in general, is given in ISO 5022. This standard details the statistical basis for sampling plans for acceptance testing of a consignment or lot. Cathode blocks used in the production of aluminum have specific requirements of sampling, and while the statistical basis for sampling given in ISO 5022 applies, further or modified requirements may also apply.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
Note 1: The following ASTM standards are noted as sources of useful information: Test Methods C559, C611, C651, C747, C1025, C1039, and C1225.  
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.  
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SIGNIFICANCE AND USE
4.1 Core sampling is an acceptable way of obtaining a test specimen without destroying the usefulness of an anode block.  
4.1.1 Test specimen obtained by this guide can be used by producers and users of carbon anodes for the purpose of conducting the tests in Note 1 to obtain comparative physical properties.  
4.2 Sampling shall not weaken the anode or increase the likelihood of premature failure.
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1.1 This guide covers sampling for prebaked carbon anodes used in the production of aluminum, and details procedures for taking test samples from anode blocks. It covers equipment and procedures for obtaining samples from anode blocks in a manner that does not destroy the block or prevent its subsequent use as originally intended. However, the user must determine the subsequent use of the sampled anode blocks. Preferred locations for taking samples from single units of anodes are covered in this guide.  
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Note 1: The following ASTM standards are noted as sources of useful information: Test Methods D5502, D6120, D6744, and D6745.  
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.  
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5.1 The air reactivity rates are used to quantify the tendency of a carbon artifact to react with air. Carbon consumed by this unwanted side reaction is unavailable for the primary reactions of reducing alumina to the primary metal. Air reactivity dusting rate is used by some companies to quantify the tendency of the coke aggregate or binder coke of a carbon artifact to selectively react with these gases. Preferential attack of the binder coke or coke aggregate of a carbon artifact by these gases causes some carbon to fall off or dust, making the carbon unavailable for the primary reaction of reducing alumina and, more importantly, reducing the efficiency of the aluminum reduction cell.  
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Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production

SIGNIFICANCE AND USE
4.1 Core sampling is an acceptable way of obtaining a test specimen without destroying the usefulness of a cathode block.  
4.1.1 Test specimens obtained by this guide can be used by producers and users of cathode blocks for the purpose of conducting the tests in Note 1 to obtain comparative physical properties.  
4.2 Sampling shall not weaken the cathode block or increase the likelihood of premature failure. Extreme care shall be exercised when taking vertically drilled samples.
SCOPE
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1.1.1 Information for sampling of shaped refractory products, in general, is given in ISO 5022. This standard details the statistical basis for sampling plans for acceptance testing of a consignment or lot. Cathode blocks used in the production of aluminum have specific requirements of sampling, and while the statistical basis for sampling given in ISO 5022 applies, further or modified requirements may also apply.  
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Note 1: The following ASTM standards are noted as sources of useful information: Test Methods C559, C611, C651, C747, C1025, C1039, and C1225.  
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SIGNIFICANCE AND USE
4.1 Core sampling is an acceptable way of obtaining a test specimen without destroying the usefulness of an anode block.  
4.1.1 Test specimen obtained by this guide can be used by producers and users of carbon anodes for the purpose of conducting the tests in Note 1 to obtain comparative physical properties.  
4.2 Sampling shall not weaken the anode or increase the likelihood of premature failure.
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SIGNIFICANCE AND USE
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SIGNIFICANCE AND USE
5.1 The CO2 reactivity rates are used to quantify the tendency of a carbon artifact to react with carbon dioxide. Carbon consumed by these unwanted side reactions is unavailable for the primary reactions of reducing alumina to the primary metal. CO2  dusting rates are used to quantify the tendency of the coke aggregate or binder coke of a carbon artifact to selectively react with these gases. Preferential attack of the binder coke or coke aggregate of a carbon artifact by these gases causes some carbon to fall off or dust, making the carbon unavailable for the primary reaction of reducing alumina and, more importantly, reducing the efficiency of the aluminum reduction cell.  
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