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ASTM D8448/D8448M-22

(Specification)

Standard Specification for Basalt Fiber Strands

Standard Specification for Basalt Fiber Strands

SCOPE
1.1 This specification covers the requirements for basalt fiber, including rovings and chopped strands. This specification is intended to assist ultimate users by designating the general nomenclature for the strand products that are generally manufactured in the basalt fiber industry.  
1.2 Basalt fibers are produced by melting naturally occurring volcanic rocks, being primarily basalt or other basaltic rocks. The melt is drawn though a bushing and, typically, a sizing is applied to the fiber as it is cooled.  
1.3 Basalt fiber strands have a variety of general uses under specific conditions, such as high physical or chemical stress, high moisture, or high temperature. Property requirements under specific conditions are agreed upon between the purchaser and the supplier.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems will result in non-conformance with the standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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.

General Information

Status
Published
Publication Date
31-Aug-2022
ICS
59.060.30 - Mineral and metal fibres
Technical Committee
D13 - Textiles
Drafting Committee
D13.19 - Industrial Fibers and Metallic Reinforcements
Current Stage
Ref Project

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ASTM D8448/D8448M-22 - Standard Specification for Basalt Fiber StrandsASTM D8448/D8448M-22 - Standard Specification for Basalt Fiber Strands
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ASTM D8448/D8448M-22 - Standard Specification for Basalt Fiber Strands
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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.
Designation:D8448/D8448M −22
Standard Specification for
1
Basalt Fiber Strands
This standard is issued under the fixed designation D8448/D8448M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers the requirements for basalt
fiber,includingrovingsandchoppedstrands.Thisspecification D123 Terminology Relating to Textiles
D578 Specification for Glass Fiber Strands
is intended to assist ultimate users by designating the general
D1907/D1907M Test Method for Linear Density of Yarn
nomenclature for the strand products that are generally manu-
(Yarn Number) by the Skein Method
factured in the basalt fiber industry.
D2256/D2256M Test Method forTensile Properties ofYarns
1.2 Basalt fibers are produced by melting naturally occur-
by the Single-Strand Method
ring volcanic rocks, being primarily basalt or other basaltic
D2258/D2258M Practice for Sampling Yarn for Testing
rocks. The melt is drawn though a bushing and, typically, a
D4963/D4963M Test Method for Ignition Loss of Glass
sizing is applied to the fiber as it is cooled.
Fiber Strands and Fabrics
1.3 Basalt fiber strands have a variety of general uses under D7018/D7018M Terminology Relating to Glass Fiber and
3
Its Products (Withdrawn 2021)
specific conditions, such as high physical or chemical stress,
high moisture, or high temperature. Property requirements
2.2 ANSI Standard:
under specific conditions are agreed upon between the pur-
ANSI/ASQC Z1.4 Sampling Procedures for Inspection by
4
chaser and the supplier.
Attributes
1.4 The values stated in either SI units or inch-pound units
3. Terminology
are to be regarded separately as standard. The values stated in
each system are not exact equivalents; therefore, each system
3.1 For all terminology applying to this specification and
shall be used independently of the other. Combining values
related to glass fiber and its products, refer to Terminology
from the two systems will result in non-conformance with the
D7018/D7018M.
standard.
3.1.1 The following terms are relevant to this standard:
1.5 This standard does not purport to address all of the atmosphere for testing textiles, chopped strand, roving, strand.
safety concerns, if any, associated with its use. It is the
3.2 For all other terminology related to textiles, refer to
responsibility of the user of this standard to establish appro-
Terminology D123.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4. Composition of Basalt Fiber
1.6 This international standard was developed in accor-
4.1 Basalt fiber is composed primarily of oxides of silicon,
dance with internationally recognized principles on standard-
aluminum, calcium, magnesium, titanium, sodium, potassium,
ization established in the Decision on Principles for the
and iron with a certified chemical composition.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
1
This specification is under the jurisdiction of ASTM Committee D13 on the ASTM website.
3
TextilesandisthedirectresponsibilityofSubcommitteeD13.19onIndustrialFibers The last approved version of this historical standard is referenced on
and Metallic Reinforcements. www.astm.org.
4
Current edition approved Sept. 1, 2022. Published October 2022. DOI: 10.1520/ Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
D8448-22. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D8448/D8448M−22
TABLE 2 Letter Designations for Basalt Strand Filament
4.2 The primary certified chemical composition that applies
Diameters
to basalt fiber products used in general applications is summa-
Nominal Range for Filament Diameter
rized in Table 1.
Filament Size Designation
Average
Inch-Pound SI System,
DESCRIPTION OF BASALT PRODUCTS A
in. µm
System, Letter Number
5. General
B 3.5 0.00013 to 0.000159 3.30 to 4.05
C 4.5 0.00016 to 0.000189 4.06 to 4.82
...

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