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ASTM C367-05

ASTM C367-05

Standard Test Methods for Strength Properties of Prefabricated Architectural Acoustical Tile or Lay-In Ceiling Panels

2010-12-31 /Historical
Superseeded by:
Significance and Use:

Knowledge of hardness is useful in the development and the quality control of acoustical tile and lay-in ceiling panels. Deviation from an established hardness range will assist in pointing out processing errors or defective raw materials, thereby aiding the maintenance of uniform product quality.

This property is also useful in comparing the relative abilities of materials to resist indentations on the panel surface caused by impacts.

Since the hardness varies with the thickness, only samples of the same thickness may be directly compared.


1.1 These test methods cover the determination of the strength properties of prefabricated architectual acoustical tile or lay-in ceiling panels as follows:

Hardness4 to 9
Friability10 to 16
Sag17 to 23
Transverse strength24 to 30

1.2 Not all of the tests described in these test methods may be necessary to evaluate any particular product for a specific use. In each instance, it will be necessary to determine which properties are required.

1.3 These test methods specify procedures that may be used in product development, manufacturing control, specification acceptance, and service evaluation.

1.4 Properties determined by these test methods reflect the performance of the materials under the specific conditions of the test, and do not necessarily indicate performance under conditions other than those specified herein.

1.5 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.

acoustical panel; acoustical tile; friability; hardness; sag; strength properties; transverse strength
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