This specification covers the standard for all metal prefabricated, reflective insulation systems for equipment and piping operating at temperatures above ambient in air proposed for use in nuclear power-generating plants and industrial plants. The insulation unit is a rigid, self-contained, prefabricated metal construction made of an inner and outer casing arranged to form a rigid assembly with separated air spaces between the inner and outer casing and the individual reflective liners. The reflective insulation described herein is limited to systems of insulating units, designed to fit the equipment or piping to be insulated. The units shall be manufactured from metals that are in accordance with the thermal, physical, and chemical requirements not only of the insulation as unit, but also as an assembly of units forming the insulation system.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers the requirements for all metal prefabricated, reflective insulation systems for equipment and piping operating in air at temperatures above ambient. Typical applications are in nuclear power-generating plants and industrial plants.
1.2 Reflective insulation is thermal insulation that reduces radiant heat transfer across spaces by the use of surfaces of high reflectance and low emittance.
1.3 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.
1.4 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C168 Terminology Relating to Thermal Insulation
C335 Test Method for Steady-State Heat Transfer Properties of Pipe Insulation
C411 Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation
C835 Test Method for Total Hemispherical Emittance of Surfaces up to 1400C
C854 Test Method for Resistance to External Loads on Metal Reflective Pipe Insulation
C1045 Practice for Calculating Thermal Transmission Properties Under Steady-State Conditions
C1058 Practice for Selecting Temperatures for Evaluating and Reporting Thermal Properties of Thermal Insulation
C1061 Test Method for Thermal Transmission Properties of Non-Homogeneous Insulation Panels Installed Vertically
C1371 Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers
metallic reflective insulation; nuclear power plants; prefabricated insulation; prefabricated insulation systems; reflective insulation; reflective liners; removable/reusable; thermal performance; Electrical power systems--specifications; Elevated temperature service applications; Pipe thermal insulation--specifications; Prefabricated insulation; Reflective insulation--specifications; Temperature tests--thermal insulation; Thermal insulating materials--specifications;
ICS Number Code 27.220 (Heat recovery. Thermal insulation)
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