ASTM E1653-94(2021)

1.1''This guide covers the key parameters that determine the dynamic performance of an optical radiation transmitting fiber waveguide (see Note 1). For the purpose of this guide, optical radiation is electromagnetic radiation of wavelengths from about 200'''nm to about 5000 nm (correspondingly, frequencies of 50'''000 cm^'''1 to 2000 cm^'''1, and photon energies of 6 eV to 0.25 eV).

1.2''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 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.

1.4''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.