ASTM C607-88(2016)

Standard Practice for Coking Large Shapes of Carbon-Bearing Materials

SIGNIFICANCE AND USE
3.1 This practice is useful for preparing coked specimens for subsequent testing where the shapes desired cannot be fitted into the coking box described in Test Methods C831.  
3.2 This practice can be very sensitive to heating rates in coking. Thus, strict adherence to the coking procedure is necessary.
SCOPE
1.1 This practice covers the preparation of coking of carbon-bearing material for subsequent testing such as modulus of rupture, slag testing, thermal conductivity, and thermal expansion. Test Methods C831 is the specified method for testing residual carbon.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.

General Information

• Status: Published
• Publication Date: 31-May-2016
• ICS: 81.080 - Refractories
• Technical Committee: C08 - Refractories
• Drafting Committee: C08.04 - Chemical Behaviors

Relations

• Replaces: ASTM C607-88(2010)e1 - Standard Practice for Coking Large Shapes of Carbon-Bearing Materials
• Effective Date: 01-Jun-2016
• Refers: ASTM C133-24 - Standard Test Methods for Cold Crushing Strength and Modulus of Rupture of Refractories
• Effective Date: 01-Apr-2024
• Refers: ASTM C831-18(2023) - Standard Test Methods for Residual Carbon, Apparent Residual Carbon, and Apparent Carbon Yield in Coked Carbon-Containing Brick and Shapes
• Effective Date: 01-Nov-2023
• Refers: ASTM C874-20 - Standard Test Method for Rotary Slag Testing of Refractory Materials
• Effective Date: 01-Jun-2020
• Refers: ASTM C767-20 - Standard Test Method for Thermal Conductivity of Carbon Refractories
• Effective Date: 01-Apr-2020
• Refers: ASTM C831-18 - Standard Test Methods for Residual Carbon, Apparent Residual Carbon, and Apparent Carbon Yield in Coked Carbon-Containing Brick and Shapes
• Effective Date: 01-Feb-2018
• Refers: ASTM C831-98(2017)e1 - Standard Test Methods for Residual Carbon, Apparent Residual Carbon, and Apparent Carbon Yield in Coked Carbon-Containing Brick and Shapes 
• Effective Date: 01-Nov-2017
• Refers: ASTM C831-98(2017) - Standard Test Methods for Residual Carbon, Apparent Residual Carbon, and Apparent Carbon Yield in Coked Carbon-Containing Brick and Shapes 
• Effective Date: 01-Nov-2017
• Refers: ASTM C767-93(2013) - Standard Test Method for Thermal Conductivity of Carbon Refractories
• Effective Date: 01-Sep-2013
• Refers: ASTM C831-98(2013) - Standard Test Methods for Residual Carbon, Apparent Residual Carbon, and Apparent Carbon Yield in Coked Carbon-Containing Brick and Shapes 
• Effective Date: 01-Apr-2013
• Refers: ASTM C874-11a - Standard Test Method for Rotary Slag Testing of Refractory Materials (Withdrawn 2020)
• Effective Date: 01-Oct-2011
• Refers: ASTM C874-11 - Standard Practice for Rotary Slag Testing of Refractory Materials
• Effective Date: 01-Feb-2011
• Refers: ASTM C832-00(2010) - Standard Test Method of Measuring Thermal Expansion and Creep of Refractories Under Load
• Effective Date: 01-Nov-2010
• Refers: ASTM C767-93(2009) - Standard Test Method for Thermal Conductivity of Carbon Refractories
• Effective Date: 01-Mar-2009
• Refers: ASTM C874-99(2009) - Standard Practice for Rotary Slag Testing of Refractory Materials
• Effective Date: 01-Mar-2009

Overview

ASTM C607-88(2016) - Standard Practice for Coking Large Shapes of Carbon-Bearing Materials provides a standardized methodology for preparing large carbon-bearing specimens for a range of critical tests. Developed by ASTM International, this practice is essential in industries where carbon-bearing materials and refractories are subject to mechanical, physical, and thermal evaluations after coking. By specifying the process for coking specimens of sizes that cannot be accommodated by routine apparatus such as those in ASTM C831, this standard ensures consistency and reliability in subsequent laboratory testing.

Key Topics

• Standardized Coking Procedure: Outlines the preparation of carbon-bearing material specimens for testing, emphasizing the importance of controlled heating rates and inert atmospheric conditions.
• Specimen Compatibility: Addresses the need for coking methods suitable for large shapes that do not fit standard coking boxes, supporting diverse testing requirements.
• Testing Readiness: Prepares samples for various follow-up tests, such as modulus of rupture, slag resistance, thermal conductivity, and thermal expansion.
• Sensitive Process Parameters: Highlights the procedure’s sensitivity to temperature ramp rates and atmosphere, underlining the necessity for strict adherence to the specified method to ensure test validity.
• Health and Safety: Notes that users must establish appropriate safety practices and verify regulatory compliance before implementing the practice.

Applications

ASTM C607-88(2016) finds wide application in the manufacturing, quality control, and research of carbon-based refractories and other carbon-bearing industrial materials. Key uses include:

• Refractory Production: Assists manufacturers in simulating high-temperature processing for large shapes, ensuring materials will perform as required in demanding thermal environments.
• Product Development: Enables R&D laboratories to prepare large coked specimens for physical property and performance testing.
• Quality Assurance: Provides a reliable preparation method for samples that will undergo standard tests, helping to ensure batch-to-batch consistency and compliance with industry requirements.
• Test Preparation: Supports laboratories in readying specimens for ASTM standard tests such as residual carbon analysis, modulus of rupture, slag testing, and more, especially when routine coking equipment cannot accommodate the specimen’s size.

Related Standards

For a comprehensive approach to the testing and evaluation of coked carbon-bearing materials and refractories, consider the following related ASTM standards:

• ASTM C133 - Test Methods for Cold Crushing Strength and Modulus of Rupture of Refractories
• ASTM C767 - Test Method for Thermal Conductivity of Carbon Refractories
• ASTM C831 - Test Methods for Residual Carbon, Apparent Residual Carbon, and Apparent Carbon Yield in Coked Carbon-Containing Brick and Shapes
• ASTM C832 - Test Method of Measuring Thermal Expansion and Creep of Refractories Under Load
• ASTM C874 - Test Method for Rotary Slag Testing of Refractory Materials

These standards, together with ASTM C607-88(2016), provide a robust framework for the preparation, testing, and evaluation of carbon-bearing refractory materials within industrial, laboratory, and research environments.

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Relevant keywords: ASTM C607, coking large carbon shapes, carbon-bearing materials, refractory testing, modulus of rupture, thermal conductivity, slag testing, residual carbon, standard practice, industrial standards for refractories.

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.
Designation: C607 − 88 (Reapproved 2016)
Standard Practice for
Coking Large Shapes of Carbon-Bearing Materials
This standard is issued under the fixed designation C607; 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.
1. Scope 3.2 This practice can be very sensitive to heating rates in
coking. Thus, strict adherence to the coking procedure is
1.1 This practice covers the preparation of coking of
necessary.
carbon-bearing material for subsequent testing such as modu-
lus of rupture, slag testing, thermal conductivity, and thermal
4. Apparatus
expansion. Test Methods C831 is the specified method for
testing residual carbon.
4.1 Furnace, gas-, oil-, or electric-fired, with heating cham-
ber capable of receiving the coking box shown in Fig. 1.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4.2 Box, stainless steel, essentially as shown in Fig. 1.
conversions to SI units that are provided for information only
and are not considered standard.
5. Preparation of Samples
1.3 This standard does not purport to address all of the
5.1 Refer to the appropriate test method(s) or practice (for
safety concerns, if any, associated with its use. It is the
example, Test Methods C133, Test Method C767, Test Meth-
responsibility of the user of this standard to establish appro-
ods C831, Test Method C832, or Practice C874) for sample
priate safety and health practices and determine the applica-
requirements.
bility of regulatory limitations prior to use.
6. Procedure
2. Referenced Documents
6.1 Spread a 2-in. (51-mm) layer of dry metallurgical coke,
2.1 ASTM Standards:
passing a No. 12 (1.70-mm) sieve or a 10-meshTyler Standard
C133Test Methods for Cold Crushing Strength and Modu-
Series, over the bottom of the coking box.
lus of Rupture of Refractories
6.2 Push the sample tray through the coke until it rests on
C767Test Method for Thermal Conductivity of Carbon
the bottom.
Refractories
C831Test Methods for Residual Carbon,Apparent Residual
6.3 Set the specimens approximately 1 in. (25 mm) apart in
Carbon, and Apparent Carbon Yield in Coked Carbon-
the tray, and uniformly spaced from the box sides.
Containing Brick and Shapes
6.4 Place a protected thermocouple inside the box and near
C832Test Method of Measuring Thermal Expansion and
the center specimens for temperature control.
Creep of Refractories Under Load
6.5 Secure the lid on the box to prevent excessive leakage.
C874Test Method for Rotary Slag Testing of Refractory
Materials
6.6 Place the loaded box in the furnace heating chamber
with the nitrogen inlet, thermocouple, and outlet pipe extend-
3. Significance and Use
ing through a bricked-up door.
3.1 This practice is useful for preparing coked specimens
6.7 Purge the coking box with nitrogen containing no more
forsubsequenttestingwheretheshapesdesiredcannotbefitted
than 1
...