ASTM C534-01

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Designation: C 534 – 01
Standard Specification for
Preformed Flexible Elastomeric Cellular Thermal Insulation
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in Sheet and Tubular Form
This standard is issued under the fixed designation C 534; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope C 585 Practice for Inner and Outer Diameters of Rigid
Thermal Insulation for Nominal Sizes of Pipe and Tubing
1.1 This specification covers preformed flexible elastomeric
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(NPS System)
cellular thermal insulation in sheet and tubular form. Grade 1
C 692 Test Method for Evaluating the Influence of Thermal
covers materials to be used on commercial or industrial
Insulations on External Stress Corrosion Cracking Ten-
systems with operating temperatures from -57 to 104°C (-70 to
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dency of Austenitic Stainless Steel
220°F), Grade 2 covers material used on industrial systems
C 795 Specification for Thermal Insulation for Use in Con-
with operating temperatures from -40 to 175°C (-40 to 350°F),
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tact with Austenitic Stainless Steel
and Grade 3 covers material used on industrial systems with
C 871 Test Methods for Chemical Analysis of Thermal
operating temperatures from -40 to 120°C (-40 to 250°F)
Insulation Materials for Leachable Chloride, Fluoride,
where halogens are not permitted.
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Silicate, and Sodium Ions
1.2 The values stated in SI units are to be regarded as the
C 1045 Practice for Calculating Thermal Transmission
standard. The inch-pound equivalents of SI units, given in
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Properties Under Steady-State Conditions
parentheses, may be approximate.
C 1058 Practice for Selecting Temperatures for Evaluating
1.3 This standard does not purport to address all of the
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and Reporting Thermal Properties of Thermal Insulation
safety concerns, if any, associated with its use. It is the
C 1114 Test Method for Steady-State Thermal Transmission
responsibility of the user of this standard to establish appro-
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Properties by Means of the Thin-Heater Apparatus
priate safety and health practices and determine the applica-
C 1304 Test Method for Assessing the Odor Emission of
bility of regulatory limitations prior to use.
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Thermal Insulation Materials
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2. Referenced Documents
D 883 Terminology Relating to Plastics
D 1622 Test Method for Apparent Density of Rigid Cellular
2.1 ASTM Standards:
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Plastics
C 168 Terminology Relating to Thermal Insulation
D 1667 Specification for Flexible Cellular Materials-Vinyl
C 177 Test Method for Steady-State Heat Flux Measure-
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Chloride Polymers and Copolymers (Closed-Cell Foam)
ments and Thermal Transmission Properties by Means of
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E 84 Test Method for Surface Burning Characteristics of
the Guarded-Hot-Plate Apparatus
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Building Materials
C 209 Test Methods for Cellulosic Fiber Insulating Board
E 96 Test Methods for Water Vapor Transmission of Mate-
C 390 Criteria for Sampling and Acceptance of Preformed
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rials
Thermal Insulation Lots
C 335 Test Method for Steady-State Heat Transfer Proper-
3. Terminology
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ties of Horizontal Pipe Insulation
3.1 Definitions—Terms used in this specification are defined
C 411 Test Method for Hot-Surface Performance of High-
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in Terminology C 168 and in Terminology D 883.
Temperature Thermal Insulation
3.2 Definition of Term Specific to This Standard:
C 447 Practice for Estimating the Maximum Use Tempera-
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3.2.1 cellular elastomeric foam—a closed-cell foam made
ture of Thermal Insulations
of natural or synthetic rubber, or a mixture of the two, and
C 518 Test Method for Steady-State Thermal Transmission
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containing other polymers, other chemicals, or both, which
Properties by Means of the Heat Flow Meter Apparatus
may be modified by organic or inorganic additives. These
foams have properties similar to those of vulcanized rubber,
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This specification is under the jurisdiction of ASTM Committee C16 on
namely, (1) the ability to be converted from a thermoplastic to
Thermal Insulation and is the direct responsibility of Subcommittee C16.22 on
Organic and Nonhomogeneous Inorganic Thermal Insulations.
Current edition approved April 10, 2001. Published June 2001. Originally
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published as C 534 - 64T. Last previous edition C 534 - 99. Annual Book of ASTM Standards, Vol 08.01.
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Annual Book of ASTM Standards, Vol 04.06. Annual Book of ASTM Standards, Vol 04.07.
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C 534
a thermosetting state by cross-linking (vulcanization) and (2) 5.3 Flexible, elastomeric, cellular thermal insulations shall
the ability to recover substantially i
...