Standard Specification for Mineral Fiber Pipe Insulation
Standard Specification for Mineral Fiber Pipe Insulation
ABSTRACT This specification covers mineral fiber pipe insulation that are formed into hollow cylinders for standard pipe and tubing sizes. The pipe insulation may be molded or precision v-grooved with one or more walls split longitudinally and used up to a specified temperature. The materials are classified into five types according to the processing method used to form the material and the operating temperatures and into two grades according to heating requirements. The mineral fiber insulation should be manufactured from molten mineral substances such as rock, slag, or glass and processed into fibrous form using a binder, and adhesives when preferred. All products should conform to the required values of hot surface performance, non-fibrous content, use temperature, sag resistance, linear shrinkage, water vapor sorption, surface-burning characteristics, apparent thermal conductivity, and mean temperature. SCOPE 1.1 This specification covers mineral fiber insulation produced to form hollow cylinders for standard pipe and tubing sizes. Use mineral fiber pipe insulation that has been either molded or precision v-grooved, with one or more walls split longitudinally for use on pipe temperatures up to 1400°F (760°C). 1.2 For satisfactory performance, use properly installed protective vapor retarders or barriers on sub-ambient temperature applications to reduce movement of moisture through or around the insulation to the colder surface. Failure to use a vapor barrier can lead to insulation and system damage. Refer to Practice C921 to aid material selection. 1.3 Flexible mineral fiber wrap products such as perpendicular-oriented fiber insulation rolls, non-precision or manually scored block or board, or flexible boards or blankets used as pipe insulation, are not covered by this specification. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 For Naval Sea Systems Command (NAVSEA) acceptance, materials must also comply with Supplemental Requirements. See Annex A1 of this standard. 1.6 The following safety hazards caveat applies to the test methods portion, Section 11, only: 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. 1.7 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.
ASTM C547-22a: Standard Specification for Mineral Fiber Pipe Insulation provides requirements for preformed mineral fiber insulation made into hollow cylindrical shapes to fit standard pipe and tubing sizes. This specification by ASTM International ensures that mineral fiber pipe insulation, either molded or precision v-grooved, meets key performance and safety criteria for use on pipes operating at temperatures up to 1400°F (760°C). The document classifies materials by type and grade based on formation process and thermal performance.
ASTM C547-22a is widely referenced in the industrial, commercial, and institutional sectors, promoting reliable thermal insulation for piping systems, consistent product quality, and regulatory compliance.
Mineral Fiber Pipe Insulation specified by ASTM C547-22a is used in a range of thermal insulation applications to:
Другие стандарты ASTM
Common environments include HVAC systems, process piping, plumbing, hot water and steam pipelines, and mechanical service lines.
ASTM C547-22a is essential for professionals involved in designing, specifying, installing, or inspecting thermal insulation on pipes, helping to ensure energy savings, safety, and regulatory adherence. Proper implementation of this standard supports robust and consistent thermal insulation in demanding environments.