ASTM C975-87(2009)

Standard Practice for Preparing Test Specimens from Basic Refractory Ramming Products by Pressing

SIGNIFICANCE AND USE
This practice defines a procedure that ensures consistent preparation of specimens for product testing and evaluation.  
This practice can be used in the laboratories of producers, users, and general-interest parties for research and development or quality-control work. It is particularly useful for interlaboratory comparisons of products, for repetitive evaluations or comparisons of products or product quality, and in specifying a uniform preparation practice for specimens for acceptance testing.  
In using this practice it must be recognized that the structure of laboratory-pressed specimens may differ significantly from the structure of material rammed in field applications.
SCOPE
1.1 This practice covers a procedure for preparing test specimens from basic refractory ramming products by pressing prepared material in a mold. Specimens prepared in accordance with this procedure are intended for use in ASTM test methods.  
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: Historical
• Publication Date: 28-Feb-2009
• ICS: 81.080 - Refractories
• Technical Committee: C08 - Refractories
• Drafting Committee: C08.09 - Monolithics

Relations

• Replaces: ASTM C975-87(2004) - Standard Practice for Preparing Test Specimens from Basic Refractory Ramming Products by Pressing
• Effective Date: 01-Mar-2009

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation: C975 − 87 (Reapproved 2009)
StandardPractice for
Preparing Test Specimens from Basic Refractory Ramming
Products by Pressing
This standard is issued under the fixed designation C975; 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 3.3 Steel Molds.
1.1 This practice covers a procedure for preparing test
3.4 Oven, air circulating.
specimens from basic refractory ramming products by pressing
3.5 Trowel.
preparedmaterialinamold.Specimenspreparedinaccordance
with this procedure are intended for use inASTM test methods.
4. Procedure
1.2 The values stated in inch-pound units are to be regarded
4.1 Store the material to be tested at 85 6 2°F (29.5 6 1°C)
as standard. The values given in parentheses are mathematical
for 24 h prior to testing.
conversions to SI units that are provided for information only
and are not considered standard.
4.2 Reduce the sample to the desired batch size with a
sample splitter or by quartering taking precautions to prevent
1.3 This standard does not purport to address all of the
segregation. Sufficient material should be batched to provide at
safety concerns, if any, associated with its use. It is the
least a 10 % excess over test specimen requirements.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.3 Add the weighed, dry batch to the mixer and dry-mix at
bility of regulatory limitations prior to use.
low speed for 30 s. Continue to mix at low speed while adding
the required amount of water (see 4.3.1) within 30 s. Wet-mix
2. Significance and Use
at low speed for 3 min.
2.1 This practice defines a procedure that ensures consistent
4.3.1 Use the amount of water and mixing time (if different
preparation of specimens for product testing and evaluation.
from above) recommended by the manufacturer. The water
2.2 This practice can be used in the laboratories of
must be potable and at a temperature of 85 6 2°F (29.5 6
producers, users, and general-interest parties for research and
1°C). Measure the water addition to the nearest 0.1 % by
development or quality-control work. It is particularly useful
weight.
for interlaboratory comparisons of products, for repetitive
4.4 Specimens of the desired size should be pressed imme-
evaluations or comparisons of products or product quality, and
diately after the batch is mixed. Weigh the proper amount of
in specifying a uniform preparation practice for specimens for
material for each specimen
...