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ASTM C921-10(2015)

(Practice)

Standard Practice for Determining the Properties of Jacketing Materials for Thermal Insulation (Withdrawn 2021)

Standard Practice for Determining the Properties of Jacketing Materials for Thermal Insulation (Withdrawn 2021)

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 C1423.  
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.
WITHDRAWN RATIONALE
Formerly under the jurisdiction of Committee C16 on Thermal Insulation, this practice was withdrawn in September 2021. This standard is being withdrawn without replacement due to its limited use by industry.

General Information

Status
Withdrawn
Publication Date
31-Aug-2015
Withdrawal Date
08-Sep-2021
ICS
27.220 - Heat recovery. Thermal insulation
Technical Committee
C16 - Thermal Insulation
Drafting Committee
C16.33 - Insulation Finishes and Moisture
Current Stage
Ref Project

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ASTM C921-10(2015) - Standard Practice for Determining the Properties of Jacketing Materials for Thermal Insulation (Withdrawn 2021)ASTM C921-10(2015) - Standard Practice for Determining the Properties of Jacketing Materials for Thermal Insulation (Withdrawn 2021)
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ASTM C921-10(2015) - Standard Practice for Determining the Properties of Jacketing Materials for Thermal Insulation (Withdrawn 2021)
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Standards Content (Sample)

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: C921 − 10 (Reapproved 2015)
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 U.S. Department of Defense.
1. Scope (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)
by the Hot-Dip Process
1.1 This practice covers jackets applied over thermal insu-
A792/A792M Specification for Steel Sheet, 55 %
lation on piping and equipment, including materials applied
Aluminum-Zinc Alloy-Coated by the Hot-Dip Process
solely for physical protection, and materials applied as vapor
B209 Specification for Aluminum and Aluminum-Alloy
retarders.
Sheet and Plate
1.2 This practice provides material and physical
C168 Terminology Relating to Thermal Insulation
requirements, or both, for jackets. Guidance in selecting the
C390 Practice for Sampling and Acceptance of Thermal
proper jacket for a given application can be found in Guide
Insulation Lots
C1423.
C921 Practice for Determining the Properties of Jacketing
1.3 This practice does not cover field applied mastics or Materials for Thermal Insulation
C1258 Test Method for Elevated Temperature and Humidity
barrier coatings and their attendant reinforcements, nor does it
cover jackets for buried insulation systems. Resistance of Vapor Retarders for Insulation
C1263 Test Method for Thermal Integrity of Flexible Water
1.4 The values stated in inch-pound units are to be regarded
Vapor Retarders
as standard. The values given in parentheses are mathematical
C1338 Test Method for Determining Fungi Resistance of
conversions to SI units that are provided for information only
Insulation Materials and Facings
and are not considered standard.
C1423 Guide for Selecting Jacketing Materials for Thermal
1.5 This standard does not purport to address all of the
Insulation
safety concerns, if any, associated with its use. It is the
D774/D774M Test Method for Bursting Strength of Paper
responsibility of the user of this standard to establish appro- 3
(Withdrawn 2010)
priate safety and health practices and determine the applica-
D828 Test Method for Tensile Properties of Paper and
bility of regulatory limitations prior to use.
PaperboardUsingConstant-Rate-of-ElongationApparatus
3
(Withdrawn 2009)
2. Referenced Documents
D882 Test Method for Tensile Properties of Thin Plastic
2
2.1 ASTM Standards:
Sheeting
A240/A240M Specification for Chromium and Chromium-
D1204 Test Method for Linear Dimensional Changes of
Nickel Stainless Steel Plate, Sheet, and Strip for Pressure
Nonrigid Thermoplastic Sheeting or Film at Elevated
Vessels and for General Applications
Temperature
A336/A336M Specification for Alloy Steel Forgings for
E84 Test Method for Surface Burning Characteristics of
Pressure and High-Temperature Parts
Building Materials
A653/A653M Specification for Steel Sheet, Zinc-Coated
E96/E96M Test Methods for Water Vapor Transmission of
Materials
2.2 TAPPI Standards:
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal
4
T461 Flame Resistance of Treated Paper and Paperboard
Insulation and is the direct responsibility of Subcommittee C16.33 on Insulation
Finishes and Moisture.
Current edition approved Sept. 1, 2015. Published October 2015. Originally
approved in 1979. Last previous edition approved in 2010 as C921–10. DOI:
3
10.1520/C0921-10R15. The last approved version of this historical standard is referenced on
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.astm.org.
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from TechnicalAssociation of the Pulp and Paper Industry (TAPPI),
Standards volume information, refer to the standard’s Document Summary page on 15 Technology Parkway South, Suite 115, Peachtree Corners, GA 30092, http://
the ASTM website. www.tappi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C921 − 10 (2015)
3. Terminology those cases where high abuse resistance is required, it is
applied to the insulation prior to installation of a protective
3.1 Definitions—Definitions in Terminology C168 apply to
jacket.
terms used in this practice, including the word jacket, which is
defined as "a form of facing applied over insulation." In 5.4 The non vapor-retarding Type II flexible jacket (Grades
commonuse,thetermsjacketandjacketingshallbeconsidered
1 and 2
...

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These test methods cover procedures for sampling and testing mastics and coatings for use as weather and vapour barrier finishes on thermal insulations and for other accessory use. Take the samples for laboratory examination from the original containers immediately after stirring to a uniform condition. Determine the number of containers sampled as required representing a shipment. Open the original containers and examine them for uniformity of contents. The procedures for determining the stability of coatings under freezing are presented in details. The paper covers the determination of the volume of volatile matter and the coverage per unit of dry film thickness of mastics and coatings. Application of the material to the test panels shall meet the requirements prescribed, or to the thickness and by the method to be followed in practice, such as spray, brush, or trowel. Test the coated panel prepared in accordance with the required method at 15-min intervals to determine the time required to set-to-touch, and at 30-min intervals to determine the time to reach practical hardness.
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1.1 These test methods cover procedures for sampling and testing mastics and coatings for use as weather and vapor retarder finishes on thermal insulations and for other accessory use.  
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1.1 This specification covers the general requirements for faced thermal insulation boards composed of rigid cellular polyisocyanurate surfaced with other materials. The insulation boards are intended for use at temperatures between −40 and 200°F (−40 and 93°C). This specification does not cover cryogenic applications. Consult the manufacturer for specific recommendations and properties in cryogenic conditions. For specific applications, the actual temperature limits shall be agreed upon by the manufacturer and the purchaser.  
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5.3 The use of analysis procedures described in this practice can also apply to designed or existing systems. In the rectangular coordinate system, Practice C680 can be applied to heat flows normal to flat, horizontal or vertical surfaces for all types of enclosures, such as boilers, furnaces, refrigerated chambers and building envelopes. In the cylindrical c...
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1.4 The computer program that can be generated from the algorithms and computational methodologies defined in this practice is described in Section 7 of this practice. The computer program is intended for flat slab, pipe and hollow sphere insulation systems.  
1.5 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.  
1.6 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.  
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3.1 Tensile strength is a fundamental property associated with mineral fiber manufacture since it is influenced by the type of fiber, the deposition of fiber, the type and the amount of bonding agent, and the method of curing the resin to form a bonded insulation product. The test is an indication of product integrity and the ability of the product to be successfully handled and applied in the field.
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1.1 This test method covers evaluation of strength in tension on mineral fiber batt- and blanket-type insulation products. It is useful for determining the comparative tensile properties of these products, specimens of which cannot be held by the more conventional clamp-type grips. This is a quality control method, and the results shall not be used for design purposes. It is not suitable for board-type products.  
1.2 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.  
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1.4 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.

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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.

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Standard Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation

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5.1 Density measurements of preformed pipe insulation are useful in determining compliance of a product with specification limits and in providing a relative gage of product weights. For any one kind of insulation some important physical and mechanical properties, such as thermal conductivity, heat capacity, strength, etc., bear a specific relationship with its density; however, on a density basis, these properties are not directly comparable with those for other kinds of material.  
5.2 The physical dimensions of preformed pipe insulation are important quantities not only for determining the density of the pipe insulation but also for determining the conformance to specifications. The use of multilayer insulations is common, and the dimensions are necessary to ensure proper nesting of the layers.
SCOPE
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