Standard Specification for Prefabricated Reflective Insulation Systems for Equipment and Pipe Operating at Temperatures above Ambient Air

ABSTRACT
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.
SCOPE
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

General Information

Status
Historical
Publication Date
30-Sep-2017
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM C667-17 - Standard Specification for Prefabricated Reflective Insulation Systems for Equipment and Pipe Operating at Temperatures above Ambient Air
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C667 −17
Standard Specification for
Prefabricated Reflective Insulation Systems for Equipment
1
and Pipe Operating at Temperatures above Ambient Air
This standard is issued under the fixed designation C667; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope C835 Test Method for Total Hemispherical Emittance of
Surfaces up to 1400°C
1.1 This specification covers the requirements for all metal
C854 Test Method for Resistance to External Loads on
prefabricated, reflective insulation systems for equipment and
3
Metal Reflective Pipe Insulation (Withdrawn 1997)
piping operating in air at temperatures above ambient. Typical
C1045 Practice for Calculating Thermal Transmission Prop-
applications are in nuclear power-generating plants and indus-
erties Under Steady-State Conditions
trial plants.
C1058 Practice for Selecting Temperatures for Evaluating
1.2 Reflective insulation is thermal insulation that reduces
and Reporting Thermal Properties of Thermal Insulation
radiant heat transfer across spaces by the use of surfaces of
C1061 Test Method for Thermal Transmission Properties of
high reflectance and low emittance.
Non-Homogeneous Insulation Panels Installed Vertically
3
1.3 The values stated in inch-pound units are to be regarded (Withdrawn 1995)
C1371 Test Method for Determination of Emittance of
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only Materials Near Room Temperature Using Portable Emis-
someters
and are not considered standard.
1.4 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Definitions:
responsibility of the user of this standard to establish appro-
3.1.1 Terms relating to thermal insulation materials and
priate safety, health, and environmental practices and deter-
testing are in accordance with Terminology C168.
mine the applicability of regulatory limitations prior to use.
3.2 Definitions of Terms Specific to This Standard:
1.5 This international standard was developed in accor-
3.2.1 convection stops—seals used to reduce convection
dance with internationally recognized principles on standard-
losses.
ization established in the Decision on Principles for the
3.2.2 end supports—structural members placed at the end of
Development of International Standards, Guides and Recom-
a unit of insulation and fastened to both the inner and outer
mendations issued by the World Trade Organization Technical
case.
Barriers to Trade (TBT) Committee.
3.2.2.1 Discussion—The primary purpose of the end sup-
2. Referenced Documents
ports is to increase the structural integrity of the unit.
2
2.1 ASTM Standards:
3.2.3 inner case—the innermost sheet of the unit of insula-
C168 Terminology Relating to Thermal Insulation
tion (closest to the hot surface).
C335 Test Method for Steady-State Heat Transfer Properties
3.2.3.1 Discussion— The inner case may perform structural
of Pipe Insulation
functions in addition to its thermal functions.
C411 Test Method for Hot-Surface Performance of High-
3.2.4 insulation assembly—an assembly of insulation units
Temperature Thermal Insulation
arranged and secured together in a prescribed order that
comprises the complete insulation for a vessel, pump, pipeline,
1
or other component for a single design objective.
This specification is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.40 on
3.2.5 insulation system—a collection of insulation
Insulation Systems.
assemblies, that when secured together in a prescribed order,
Current edition approved Oct. 1, 2017. Published November 2017. Originally
approved in 1992. Last previous edition approved in 2014 as C667 – 09 (2014). comprises the complete insulation for a vessel, pump, pipeline,
DOI: 10.1520/C0667-17.
or other component for a single design objective.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C667−17
3.2.6 lap straps—strips that overlap a longitudinal or cir- 4.1.1 Service requirements including operating hot surface
cumferential joint
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C667 − 09 (Reapproved 2014) C667 − 17
Standard Specification for
Prefabricated Reflective Insulation Systems for Equipment
1
and Pipe Operating at Temperatures above Ambient Air
This standard is issued under the fixed designation C667; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
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 1400°C
3
C854 Test Method for Resistance to External Loads on Metal Reflective Pipe Insulation (Withdrawn 1997)
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
3
(Withdrawn 1995)
C1371 Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers
3. Terminology
3.1 Definitions:
3.1.1 Terms relating to thermal insulation materials and testing are in accordance with Terminology C168.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 convection stops—seals used to reduce convection losses.
3.2.2 end supports—structural members placed at the end of a unit of insulation and fastened to both the inner and outer case.
3.2.2.1 Discussion—
1
This specification is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.40 on Insulation
Systems.
Current edition approved Feb. 1, 2014Oct. 1, 2017. Published March 2014November 2017. Originally approved in 1992. Last previous edition approved in 20092014 as
C667C667 – 09 (2014).-09. DOI: 10.1520/C0667-09R14.10.1520/C0667-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C667 − 17
The primary purpose of the end supports is to increase the structural integrity of the unit.
3.2.3 inner case—the innermost sheet of the unit of insulation (closest to the hot surface).
3.2.3.1 Discussion—
The inner case may perform structural functions in addition to its thermal functions.
3.2.4 insulation assembly—an assembly of insulation units arranged and secured together in a prescribed order that comprises
the complete insulation for a vessel, pump, pipeline, or other component for a single design objective.
3.2.5
...

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