ASTM C1325-08a

Standard Specification for Non-Asbestos Fiber-Mat Reinforced Cementitious Backer Units (Includes all amendments And changes 12/31/2010).

Automatically translated name:

Standard Specification for Non-Asbestos Fiber-Mat Reinforced Cementitious Backer Units

STANDARD published on 1.11.2008

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The information about the standard:

Designation standards: ASTM C1325-08a
Note: WITHDRAWN
Publication date standards: 1.11.2008
SKU: NS-10697
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM C1325-08a :

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

Additional information

1. Scope

1.1 This specification covers non-asbestos fiber-mat reinforced cementitious backer units manufactured to be dimensionally stable and suitable as either an unfinished substrate (see Note 1) or as a substrate for decoration such as natural stone or tile on walls, floors, or decks in wet and dry areas. It is also suitable to be used as a substrate in the Application of Class PB Exterior Insulation Finish Systems (Practice C 1397), the Application of Direct-Applied Finish Systems (Practice C 1516), and the Application of Exterior Insulation Finish Systems Class PI (Practice C 1535).

Note 1—When used as an unfinished substrate, consult the manufacturer's written installation literature for proper application details.

1.2 This specification is not applicable to asbestos-cement flat sheets (Specification C 220); non-asbestos fiber cement flat sheets for exterior applications such as claddings, facades, curtain walls, and soffits (Specification C 1186); gypsum backing board, coreboard, and shaftliner (Specification C 442); water-resistant gypsum backing board (Specification C 630); glass mat gypsum backing board (Specification C 1178); particle boards (Definitions D 1554); and discrete non-asbestos fiber cement interior substrate sheets (Specification C 1288).

1.3 Units—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.

2. Referenced Documents

C1154-25	Standard Terminology for Fiber-Reinforced Cement Products
C1535-05(2023)	Standard Practice for Application of Exterior Insulation and Finish Systems Class PI
D1037-12(2020)	Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
D1554-10(2023)	Standard Terminology Relating to Wood-Base Fiber and Particle Panel Materials
D2394-17(2022)	Standard Test Methods for Simulated Service Testing of Wood and Wood-Based Finish Flooring
E84-26a	Standard Test Method for Surface Burning Characteristics of Building Materials (Includes all amendments and changes 4/15/2026).
G21-15(2021)e1	Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi (Includes all amendments and changes 6/22/2021).
G22-23	Standard Practice for Determining Resistance of Plastics to Bacteria
A118.1	Specification for Dry-Set Portland Cement Mortar
C1516-05(2023)	Standard Practice for Application of Direct-Applied Exterior Finish Systems
A118.4	Specification for Latex-Portland Cement Mortar
A136.1	Standard for Organic Adhesives for Installation of Ceramic Tile
C473-24	Standard Test Methods for Physical Testing of Gypsum Panel Products
C220-91(1999)	Standard Specification for Flat Asbestos-Cement Sheets
C666/C666M-26	Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing
C947-03(2023)	Standard Test Method for Flexural Properties of Thin-Section Glass-Fiber-Reinforced Concrete (Using Simple Beam With Third-Point Loading)
C1397-25	Standard Practice for Application of Class PB Exterior Insulation and Finish Systems (EIFS) and EIFS with Drainage
C1178/C1178M-24	Standard Specification for Coated Glass Mat Water-Resistant Gypsum Backing Panel
C1185-23	Standard Test Methods for Sampling and Testing Fiber-Cement Flat Sheet, Roofing and Siding Shingles, and Clapboards
C1186-26	Standard Specification for Flat Fiber-Cement Sheets
C1288-23	Standard Specification for Fiber-Cement Interior Substrate Sheets
C1396/C1396M-24	Standard Specification for Gypsum Board

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