ASTM C607-88(2005)
(Practice)Standard Practice for Coking Large Shapes of Carbon-Bearing Materials
Standard Practice for Coking Large Shapes of Carbon-Bearing Materials
SIGNIFICANCE AND USE
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 C 831.
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 C 831 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.
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Designation:C607–88 (Reapproved 2005)
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.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Significance and Use
1.1 This practice covers the preparation of coking of 3.1 This practice is useful for preparing coked specimens
carbon-bearing material for subsequent testing such as modu- forsubsequenttestingwheretheshapesdesiredcannotbefitted
lus of rupture, slag testing, thermal conductivity, and thermal into the coking box described in Test Methods C831.
expansion. Test Methods C831 is the specified method for 3.2 This practice can be very sensitive to heating rates in
testing residual carbon. coking. Thus, strict adherence to the coking procedure is
1.2 The values stated in inch-pound units are to be regarded necessary.
as standard. The values given in parentheses are mathematical
4. Apparatus
conversions to SI units that are provided for information only
and are not considered standard. 4.1 Furnace, gas-, oil-, or electric-fired, with heating cham-
ber capable of receiving the coking box shown in Fig. 1.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4.2 Box, stainless steel, essentially as shown in Fig. 1.
responsibility of the user of this standard to establish appro-
5. Preparation of Samples
priate safety and health practices and determine the applica-
5.1 Refer to the appropriate test method(s) or practice (for
bility of regulatory limitations prior to use.
example, Test Methods C133, Test Method C767, Practice
2. Referenced Documents
C768, Test Methods C831, Test Method C832, or Practice
C874) for sample requirements.
2.1 ASTM Standards:
C133 Test Methods for Cold Crushing Strength and Modu-
6. Procedure
lus of Rupture of Refractories
6.1 Spread a 2-in. (51-mm) layer of dry metallurgical coke,
C767 Test Method for Thermal Conductivity of Carbon
passing a No. 12 (1.70-mm) sieve or a 10-meshTyler Standard
Refractories
Series, over the bottom of the coking box.
C768 Practice for Drip SlagTesting Refractory Materials at
6.2 Push the sample tray through the coke until it rests on
High Temperature
the bottom.
C831 TestMethodsforResidualCarbon,ApparentResidual
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
C832 Test 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.
C874 Practice for Rotary Slag Testing of Refractory Mate-
6.6 Place the loaded box in the furnace heating chamber
rials
with the nitrogen inlet, thermocouple, and outlet pipe extend-
ing through a bricked-up door.
ThispracticeisunderthejurisdictionofASTMCommitteeC08onRefractorie
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