ASTM-C689 Historical Revision Information
Standard Test Method for Modulus of Rupture of Unfired Clays

ASTM-C689 - 2009 EDITION - SUPERSEDED
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This test method details the standard procedure for the determination of modulus of rupture of ceramic whiteware clays, both dry and after conditioning at specified relative humidity, or both. The apparatuses needed for this method are a conditioning cabinet, and a testing machine. Extruded, clay-flint, and solid cast specimens shall be prepared accordingly. Specific procedures as to handling, warpage, drying, and storage, and the corresponding calculations are discussed thoroughly.

ORDER

Scope

1.1 This test method covers the determination of the modulus of rupture of ceramic whiteware clays both dry and after conditioning at 50 or 80 % relative humidity, or both.

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.

Significance and Use

3.1 The purpose of this test method is to obtain values of rupture modulus of clays before firing, under various processing conditions (relative humidity).

Keywords

clay; modulus of rupture; Ceramic whiteware clays; Modulus of rupture (MOR); Unfired clays; ICS Number Code 91.100.15 (Mineral materials and products)

To find similar documents by ASTM Volume:

15.02 (Glass; Ceramic Whitewares)

To find similar documents by classification:

91.100.15 (Mineral materials and products Including earth, sands, clay, slates, stones, etc.)

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Document Number

ASTM-C689-09

Revision Level

2009 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Jan. 1, 2009

Document Type

Test Method

Page Count

3 pages

Committee Number

C21.04