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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C — 88 Reapproved Standard Test Method for Compressive Crushing Strength of Fired Whiteware Materials1 This standard is issued under the fixed designation C ; aastm 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
NOTE 1—It is desirable to include details of the origin aetm the specimen and subsequent treatment. C adtm 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.
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.
New cushion pads shall be used for each specimen. Originally published as C — 74 to replace C and C These faces shall be perpendicular. A superscript epsilon e indicates an editorial change since the last revision or reapproval. The ends of all specimens shall be ground or lapped to yield plane and parallel faces. One operator in each laboratory tested ten specimens of each material. Single-operator component Between-laboratory component 1. Last previous edition C — 88 Ideally, ceramics should be stressed this way in use.
Significance and Use 3. If the contact block is cracked during testing, it shall be replaced. This test is a measure of the potential load-bearing usefulness of a ceramic.
A number in parentheses indicates the year of last reapproval. Enviado por Thamyres flag Denunciar.
ASTM C 773 – 88
Place an appropriate guard around the specimen to contain flying fragments at failure; eye protection should be used by the operator. The compo- nents of variance for compressive strength results expressed c77 coefficients aatm variation were calculated as follows: 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.
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. Precision and Bias 8. Current edition satm Sept. The spherical surfaces shall be well lubricated, and the center of curvature shall lie on the lower face of the platen.