1.1 This specification covers the composition, physical properties, and product forms of microporous thermal insulation for use on surfaces at temperatures from 80 ˚°C (176 °F) up to 1150 ˚°C (2102 °F), unless otherwise agreed upon by the manufacturer and purchaser.

1.2 This specification only covers microporous thermal insulation comprising compacted powder, fibers and opacifiers.

1.3 The values stated in SI units are to be regarded as the standard. The inch-pound equivalents of SI units, given in parentheses, are given for information only and are only approximate.

1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.