Purchase your copy of ASTM C – 88() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. Designation: C − 88 (Reapproved ) Standard Test Method for For referenced ASTM standards, visit the ASTM website, , or. Find the most up-to-date version of ASTM C at Engineering
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Enviado por Thamyres flag Denunciar. C — 88 Reapproved Standard Test Method for Compressive Crushing Strength of Fired Whiteware Materials1 This standard is issued under the fixed designation C ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
ASTM International – Laboratory Directory – University of Dayton Research Institute
A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. 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.
Significance and Use 3. Ideally, ceramics should be stressed this way in use. This test is a measure of the potential load-bearing usefulness of a ceramic.
The spherical surfaces shall be well lubricated, and the center of curvature shall lie on the lower face of the platen. If the contact block is cracked during testing, it shall be replaced.
New cushion pads shall be used for each specimen. Suitable materials for cushion pads, selected in accordance with the compressive strength range of the material being tested, are shown in the following table: Discard any pieces exhibiting cracks or flaws visible to the unaided eye.
Place an appropriate guard around the specimen to contain flying fragments at failure; eye protection should be used by the operator. Current edition approved Sept. Originally published as C — 74 to replace C and C Last previous edition C — 88 Asttm 5 compressive strength of the specimen, psi or MPa; P 5 total load on the specimen at failure, lbf or N; and A 5 calculated area of the bearing surface of the specimen, in. NOTE 1—It is desirable to include details of the origin of the specimen and subsequent treatment.
ASTM C 773 – 88
Precision and Bias 8. One operator in each laboratory tested ten specimens of each material. C773 compo- nents of variance for compressive strength results expressed as coefficients of variation were calculated as follows: Single-operator component Between-laboratory component 1.
They may be formed and matured for the purpose of compression testing, or they may be cut from matured whitew- are by sawing or coredrilling.
The ends of all specimens shall be ground or lapped to yield plane and parallel faces. These faces shall be perpendicular.