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ASTM C1355/C1355M-25

Standard Specification for Glass Fiber Reinforced Gypsum Composites
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ASTM C1355/C1355M-25

Standard Specification for Glass Fiber Reinforced Gypsum Composites

PUBLISH DATE 2025
PAGES 3
ASTM C1355/C1355M-25

This specification covers glass fiber reinforced gypsum (GRG) composites suitable for producing GRG parts for non-loading bearings, thin sections, and ornamental shapes for architectural embellishment of interior building construction. Both the neat alpha gypsum cement and the resulting composite materials should conform to the specified physical and mechanical properties such as hardness, flexural strength, impact resistance, coefficient of linear thermal expansion, humidified deflection, surface burning characteristics, and nail pull resistance.

1.1 This specification covers glass fiber reinforced gypsum (GRG) composites having minimum properties and quality suitable to allow the production of GRG parts for non-loading bearing, thin section, ornamental shapes for architectural embellishment of interior building construction.

1.2 The values stated in either inch-pound units or SI [metric] are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3 The text of this standard references footnotes which provide explanatory material. These footnotes shall not be considered as requirements of the standard.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SDO ASTM: ASTM International
Document Number C1355
Publication Date April 1, 2025
Language en - English
Page Count 3
Revision Level 25
Supercedes
Committee C11.01
Publish Date Document Id Type View
April 1, 2025 C1355_C1355M-25 Revision
June 1, 2020 C1355_C1355M-96R20 Revision
Oct. 1, 2015 C1355_C1355M-96R15 Revision
Dec. 1, 2011 C1355_C1355M-96R11 Revision
May 1, 2006 C1355_C1355M-96R06 Revision
Oct. 10, 1996 C1355_C1355M-96R01 Revision
Oct. 10, 1996 C1355_C1355M-96 Revision