ASTM C921-09
(Practice)Standard Practice for Determining the Properties of Jacketing Materials for Thermal Insulation
Standard Practice for Determining the Properties of Jacketing Materials for Thermal Insulation
ABSTRACT
This practice establishes the standard procedures for determining the material and physical properties for jacketing materials applied over thermal insulation on piping and equipment, including materials applied solely for physical protection, and materials applied as vapor retarders. This practice does not cover field applied mastics or barrier coatings and their attendant reinforcements, nor does it cover jackets for buried insulation systems. Jackets covered here are grouped into two types, each of which are subdivided further into grades and classes. Properties to which the jackets should conform to are permeance, tensile strength, puncture resistance, surface burning characteristics, flame resistance permeance, dimensional stability, fungi resistance, elevated temperature and humidity resistance, and thermal integrity.
SCOPE
1.1 This practice covers jackets applied over thermal insulation on piping and equipment, including materials applied solely for physical protection, and materials applied as vapor retarders.
1.2 This practice provides material and physical requirements, or both, for jackets. Guidance in selecting the proper jacket for a given application can be found in Guide C 1423.
1.3 This practice does not cover field applied mastics or barrier coatings and their attendant reinforcements, nor does it cover jackets for buried insulation systems.
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 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.
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Designation:C921–09
Standard Practice for
Determining the Properties of Jacketing Materials for
1
Thermal Insulation
This standard is issued under the fixed designation C921; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope A653/A653M Specification for Steel Sheet, Zinc-Coated
(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)
1.1 This practice covers jackets applied over thermal insu-
by the Hot-Dip Process
lation on piping and equipment, including materials applied
A792/A792M Specification for Steel Sheet, 55 %
solely for physical protection, and materials applied as vapor
Aluminum-Zinc Alloy-Coated by the Hot-Dip Process
retarders.
B209 Specification for Aluminum and Aluminum-Alloy
1.2 This practice provides material and physical require-
Sheet and Plate
ments, or both, for jackets. Guidance in selecting the proper
C168 Terminology Relating to Thermal Insulation
jacket for a given application can be found in Guide C1423.
C390 Practice for Sampling and Acceptance of Thermal
1.3 This practice does not cover field applied mastics or
Insulation Lots
barrier coatings and their attendant reinforcements, nor does it
C921 Practice for Determining the Properties of Jacketing
cover jackets for buried insulation systems.
Materials for Thermal Insulation
1.4 The values stated in inch-pound units are to be regarded
C1258 Test Method for Elevated Temperature and Humid-
as standard. The values given in parentheses are mathematical
ity Resistance of Vapor Retarders for Insulation
conversions to SI units that are provided for information only
C1263 Test Method for Thermal Integrity of Flexible Water
and are not considered standard.
Vapor Retarders
1.5 This standard does not purport to address all of the
C1338 Test Method for Determining Fungi Resistance of
safety concerns, if any, associated with its use. It is the
Insulation Materials and Facings
responsibility of the user of this standard to establish appro-
C1423 Guide for Selecting Jacketing Materials for Thermal
priate safety and health practices and determine the applica-
Insulation
bility of regulatory limitations prior to use.
D774/D774M Test Method for Bursting Strength of Paper
2. Referenced Documents
D828 Test Method for Tensile Properties of Paper and
2
Paperboard Using Constant-Rate-of-Elongation Appara-
2.1 ASTM Standards:
3
tus
A240/A240M Specification for Chromium and Chromium-
D882 Test Method for Tensile Properties of Thin Plastic
Nickel Stainless Steel Plate, Sheet, and Strip for Pressure
Sheeting
Vessels and for General Applications
D1204 Test Method for Linear Dimensional Changes of
A336/A336M Specification for Alloy Steel Forgings for
Nonrigid Thermoplastic Sheeting or Film at Elevated
Pressure and High-Temperature Parts
Temperature
E84 Test Method for Surface Burning Characteristics of
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal
Building Materials
Insulation and is the direct responsibility of Subcommittee C16.33 on Insulation
E96/E96M Test Methods for Water Vapor Transmission of
Finishes and Moisture.
Materials
Current edition approved April 1, 2009. Published April 2009. Originally
approved in 1979. Last previous approved in 2003 as C921–03a. DOI: 10.1520/
2.2 TAPPI Standards:
C0921-09.
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 Withdrawn. The last approved version of this historical standard is referenced
the ASTM website. on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C921–09
4
T461 Flame Resistance of Treated Paper and Paperboard 5.3 The vapor retarding Type II flexible jacket (Grades 1
and 2, Classes A, B and C) is used by itself in below ambient
3. Terminology
service applications not requiring high abuse resistance. In
3.1 Definitions—Definitions in Terminology C168 apply to those cases where high abuse resistance is required, it is
applied to the insulation prior to installation of a protective
terms used in this practice, including the word jacket, which is
defined as 9a form of facing applied over insulation9.In jacket.
5.4 The non vapor-retarding Type II flexible jacket (Grades
commonuse,thetermsjacketandjacketingshallbeconsidered
interchangeable. 1 and 2, class D) is used by itself in ab
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:C921–03a Designation:C921–09
Standard Practice for
Determining the Properties of Jacketing Materials for
1
Thermal Insulation
This standard is issued under the fixed designation C 921; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This practice covers jackets applied over thermal insulation on piping and equipment, including materials applied solely for
physical protection, and materials applied as vapor retarders.
1.2 This practice provides material and physical requirements, or both, for jackets. Guidance in selecting the proper jacket for
a given application can be found in Guide C 1423.
1.3 This practice does not cover field applied mastics or barrier coatings and their attendant reinforcements, nor does it cover
jackets for buried insulation systems.
1.4The values stated in inch-pound units are to be regarded as standard. SI units are given in parenthesis.
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 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
2.1 ASTM Standards:
2
A167Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip
2
A240Specification for Heat-Resistant Chromium and chromim-Nickel Stainless Steel Plate, Sheet and Steel 240/
A 240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and
for General Applications
A366/A366MSpecification for Steel, Sheet, Carbon, Cold-Rolled, Commercial Quality 336/A 336M Specification for Alloy
Steel Forgings for Pressure and High-Temperature Parts
A 653/A 653M Specification for Steel Sheet, Zinc Coated (Galvanized), or Zinc-Iron Alloy, Coated (Galvanealed) by the
Hot-dip Process Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the
Hot-Dip Process
4
A 792/A 792M Specification for Steel Sheet, 55% Aluminum-Zinc Alloy, Coated by the Hot-Dip Method Specification for
Steel Sheet, 55 % Aluminum-Zinc Alloy-Coated by the Hot-Dip Process
B 209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate
C 168 Terminology Relating to Thermal Insulating Materials Terminology Relating to Thermal Insulation
C 390 Practice for Sampling and Acceptance of Preformed Thermal Insulation Lots
6
C 921 Practice for Sampling and Acceptance of Preformed Thermal Insulation Practice for Determining the Properties of
Jacketing Materials for Thermal Insulation
6
C 1258 Practice for Sampling and Acceptance of Preformed Thermal Insulation Test Method for Elevated Temperature and
Humidity Resistance of Vapor Retarders for Insulation
C 1263 Test Method for Thermal Integrity of Flexible Water Vapor Retarders
C 1338 Test Method for Determining Fungi Resistance of Insulation Materials and Facings
6
C 1423 Guide for Selecting Jacketing Materials for Thermal Insulation
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.33 on Insulation Finishes
and Moisture.
Current edition approved Oct. 1, 2003. Published October 2003. Originally published in 1979. Last previous published in 2003 as C921–03.
Current edition approved April 1, 2009. Published April 2009. Originally approved in 1979. Last previous approved in 2003 as C 921–03a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 01.03.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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C921–09
6
C835Test Method for Total Hemispherical Emittance of Surfaces from 20 to 1400°C Guide for Selecting Jack
...
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