ASTM D8448/D8448M-22

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.