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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Suitable materials for cushion pads, selected in accordance with the compressive strength range of the material being tested, are shown in the following table: Originally published as C — 74 to replace C and C Discard any pieces exhibiting cracks or flaws visible to the unaided eye. This test is a measure of the potential load-bearing usefulness of a ceramic. Current edition approved Sept. Last previous edition C — 88 C 5 compressive strength of the specimen, psi or MPa; P 5 total load on the specimen ast failure, lbf or N; and A 5 calculated area of the bearing surface of the specimen, in.
Single-operator component Between-laboratory component 1. Enviado por Thamyres flag Denunciar. NOTE 1—It is desirable to include details of the origin of the specimen and subsequent treatment.
The compo- nents of variance for compressive strength results expressed as coefficients of variation were calculated as follows: C — 88 Reapproved Standard Test Method for Compressive Crushing Strength of Fired Whiteware Materials1 This astmm 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.
A superscript epsilon asym indicates an editorial change since the last revision or reapproval. A number in parentheses indicates the year of last reapproval. Significance and Use 3.
ASTM International – Laboratory Directory – University of Dayton Research Institute
These faces shall be perpendicular. The spherical surfaces shall be well 7c73, and the center of curvature shall lie on the lower face of the platen. Place an appropriate guard around the specimen to contain flying fragments at failure; eye protection should be used by the operator.
The ends of all specimens shall be ground or lapped to yield plane and parallel faces. New cushion pads shall be used for each specimen. 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.
ASTM C 773 – 88
If the contact block is cracked during testing, it shall be replaced. Precision and Bias 8. 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. One operator d773 each laboratory tested ten specimens of each material. Ideally, ceramics should be stressed this way in use.