ASTM-D3800 Standard Test Method for Density of High-Modulus Fibers

ASTM-D3800 - 2022 EDITION - CURRENT
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Standard Test Method for Density of High-Modulus Fibers
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Scope

1.1 This test method covers the determination of the density of high-modulus fibers and is applicable to both continuous and discontinuous fibers.

1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard may involve hazardous materials, operations, and equipment. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Section 9 for additional information.

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.

Significance and Use

5.1 Fiber density is useful in the evaluation of new materials at the research and development level and is one of the material properties normally given in fiber specifications.

5.2 Fiber density is used to determine fiber strength and modulus of both a fiber bundle and an individual filament. These properties are based on load or modulus slope over an effective area. Fiber density may be used with lineal mass of the fiber to give an approximation of effective tow area. Tow area divided by the average number of filaments in a tow gives an approximation of the effective area of an individual filament.

5.3 Fiber density is used as a constituent property when determining reinforcement volume and void volume based on reinforcement mass and laminate density.

Keywords

Archimedes method; buoyancy method; density; fiber density;

To find similar documents by ASTM Volume:

15.03 (Space Simulation; Aerospace and Aircraft; Composite Materials)

To find similar documents by classification:

49.025.60 (Textiles Including textile glass and coated fabrics)

83.120 (Reinforced plastics Materials for the reinforcement of plastics, see 59.100)

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Document Number

ASTM-D3800-22

Revision Level

2022 EDITION

Status

Current

Modification Type

Revision

Publication Date

May 10, 2022

Document Type

Test Method

Page Count

6 pages

Committee Number

D30.03