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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.
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 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 .
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A336/A336M Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts
A653/A653M Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
A792/A792M Specification for Steel Sheet, 55 % Aluminum-Zinc Alloy-Coated by the Hot-Dip Process
B209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate
C168 Terminology Relating to Thermal Insulation
C390 Practice for Sampling and Acceptance of Thermal Insulation Lots
C921 Practice for Determining the Properties of Jacketing Materials for Thermal Insulation
C1258 Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for Insulation
C1263 Test Method for Thermal Integrity of Flexible Water Vapor Retarders
C1338 Test Method for Determining Fungi Resistance of Insulation Materials and Facings
C1423 Guide for Selecting Jacketing Materials for Thermal Insulation
D774/D774M Test Method for Bursting Strength of Paper
D828 Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus
D882 Test Method for Tensile Properties of Thin Plastic Sheeting
D1204 Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
E84 Test Method for Surface Burning Characteristics of Building Materials
E96/E96M Test Methods for Water Vapor Transmission of Materials
TAPPI StandardsT461 Flame Resistance of Treated Paper and Paperboard Available from Technical Association of the Pulp and Paper Industry (TAPPI), 15 Technology Parkway South, Norcross, GA 30092, http://www.tappi.org.
ICS Number Code 27.220 (Heat recovery. Thermal insulation)
UNSPSC Code 30141500(Thermal insulation)
ASTM C921-10(2015), Standard Practice for Determining the Properties of Jacketing Materials for Thermal Insulation, ASTM International, West Conshohocken, PA, 2015, www.astm.orgBack to Top