Standards

ASTM WK21020

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Work Item: ASTM WK21020 - Revision of C1325 - 08 Standard Specification for Non-Asbestos Fiber-Mat Reinforced Cementitious Backer Units


Active Standard: C1325 - 08b

Developed by Subcommittee: C17.01 | Committee C17 Home | Contact Staff Manager



1. Rationale

Further clarifying the requirements for S1.3.3 Warm Water Resistance to show that the minimum value is 525 psi.


Keywords

acceptance; air cured; appearance; density; edge straightness; finish; flexural strength; glass mat cement sheet; inspection; interior wet area application; length and width tolerance; mechanical properties; minimum equilibrium strength; minimum wet strength; moisture content; moisture movement; nominal length; nominal thickness; nominal width; non-asbestos fiber-mat; packaging; physical properties; pressure cured; sampling; shipping; squareness tolerance; storage; supplementary requirements; supplementary tests; surface burning characteristics; thickness requirements; thickness tolerance; third party certification; tolerance; type tests; warm water resistance; workmanship; Cement materials/applications--specifications; Fiber-mat reinforced cement substrate sheets; Glass mat cement sheet; Nonasbestos fiber-cement materials--specifications; Substrate sheets

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Work Item Status:
Date Initiated:08-15-2008
Technical Contact: Keith Poerschke

Item: 001
Ballot: C17 (08-02)
Status: Ballot Item Approved

Item: 002
Ballot: C17 (08-02)
Status: Ballot Item Approved

Item: 003
Ballot: C17 (08-02)
Status: Ballot Item Approved as C1325-08a and Published

Item: 004
Ballot: C17 (08-02)
Status: Ballot Item Approved as C1325-08a and Published

Item: 005
Ballot: C17 (08-02)
Status: Ballot Item Approved as C1325-08a and Published

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