ASTM C1594-11

Standard Specification for Polyimide Rigid Cellular Thermal Insulation

ABSTRACT
This specification establishes the composition and physical properties of rigid polyimide cellular foams intended for use as thermal and sound-isolating insulation in commercial and industrial environments. The polyimide insulations covered are classified into three types (Types I, II, and III) according to closed cell content, and into four grades (Grades 1, 2, 3, and 4) according to density. Type II insulation is further divided into two classes (Classes 1 and 2) according to upper temperature limits. Materials shall be manufactured from the appropriate monomers and necessary ingredients. Specimens shall be sampled, tested, and conform accordingly to the following physical property requirements: apparent thermal conductivity; water and gas permeability; density; percent closed cell; upper temperature limit; high temperature stability; compressive strength; compressive force deflection; water vapor transmission; steam aging characteristics (tensile strength, dimensional and weight changes), corrosiveness; chemical resistance; vertical burn characteristics (flame application and time, burn length, and dripping); specific optical smoke density for both flaming and non-flaming exposures; toxic smoke generation; surface burning characteristics (flame spread and smoke developed indices); combustion by-products (carbon monoxide, hydrogen fluoride, hydrogen chloride, nitrogen oxides, sulfur dioxide, and hydrogen cyanide); oxygen index, and ¼ scale room burn.
SCOPE
1.1 This specification covers the composition and physical properties of polyimide foam insulation with nominal densities from 1.0 lb/ft3 to 8.0 lb/ft3 (16 kg/m3 to 128 kg/m3) and intended for use as thermal and sound-isolating insulation for temperatures from −423°F to +600°F (−253°C to +316°C) in commercial and industrial environments.
1.1.1 The annex shall apply to this specification for marine applications.
1.1.2 This standard is designed as a material specification and not a design document.
1.1.3 The values stated in Table 1 and Table 2 are not to be used as design values. It is the buyer’s responsibility to specify design requirements and obtain supporting documentation from the material supplier.
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units are given in parentheses for information only and are approximate.
1.3 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 requirements prior to use.
Note 1—The subject matter of this material specification is not covered by any other ASTM specification. There is no known ISO standard covering the subject of this standard.

General Information

• Status: Historical
• Publication Date: 14-Dec-2011
• ICS: 83.100 - Cellular materials
• ICS: 91.120.10 - Thermal insulation of buildings
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.22 - Organic and Nonhomogeneous Inorganic Thermal Insulations

Relations

• Replaces: ASTM C1594-10 - Standard Specification for Polyimide Rigid Cellular Thermal Insulation
• Effective Date: 15-Dec-2011
• Referred By: ASTM C1774-13(2019) - Standard Guide for Thermal Performance Testing of Cryogenic Insulation Systems
• Effective Date: 15-Dec-2011
• Referred By: ASTM C1558-19 - Standard Guide for Development of Standard Data Records for Computerization of Thermal Transmission Test Data for Thermal Insulation
• Effective Date: 15-Dec-2011

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:C1594 −11
Standard Specification for
1
Polyimide Rigid Cellular Thermal Insulation
This standard is issued under the fixed designation C1594; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope the Guarded-Hot-Plate Apparatus
C335TestMethodforSteady-StateHeatTransferProperties
1.1 This specification covers the composition and physical
of Pipe Insulation
propertiesofpolyimidefoaminsulationwithnominaldensities
3 3 3 3
C390Practice for Sampling and Acceptance of Thermal
from 1.0 lb/ft to 8.0 lb/ft (16 kg/m to 128 kg/m ) and
Insulation Lots
intended for use as thermal and sound-isolating insulation for
C411Test Method for Hot-Surface Performance of High-
temperatures from −423°F to +600°F (−253°C to +316°C) in
Temperature Thermal Insulation
commercial and industrial environments.
C421Test Method for Tumbling Friability of Preformed
1.1.1 The annex shall apply to this specification for marine
Block-Type and Preformed Pipe-Covering-Type Thermal
applications.
1.1.2 This standard is designed as a material specification Insulation
and not a design document. C447Practice for Estimating the Maximum Use Tempera-
1.1.3 The values stated in Table 1 and Table 2 are not to be
ture of Thermal Insulations
usedasdesignvalues.Itisthebuyer’sresponsibilitytospecify
C518Test Method for Steady-State Thermal Transmission
design requirements and obtain supporting documentation
Properties by Means of the Heat Flow Meter Apparatus
from the material supplier.
C634Terminology Relating to Building and Environmental
Acoustics
1.2 Thevaluesstatedininch-poundunitsaretoberegarded
C665SpecificationforMineral-FiberBlanketThermalInsu-
as standard. The values given in parentheses are mathematical
lation for Light Frame Construction and Manufactured
conversions to SI units that are provided for information only
Housing
and are not considered standard.
C1045Practice for Calculating Thermal Transmission Prop-
1.3 This standard does not purport to address all of the
erties Under Steady-State Conditions
safety concerns, if any, associated with its use. It is the
C1058Practice for Selecting Temperatures for Evaluating
responsibility of the user of this standard to establish appro-
and Reporting Thermal Properties of Thermal Insulation
priate safety and health practices and determine the applica-
C1114Test Method for Steady-State Thermal Transmission
bility of regulatory requirements prior to use.
Properties by Means of the Thin-Heater Apparatus
NOTE1—Thesubjectmatterofthismaterialspecificationisnotcovered
C1304Test Method for Assessing the Odor Emission of
by any other ASTM specification. There is no known ISO standard
Thermal Insulation Materials
covering the subject of this standard.
C1338Test Method for Determining Fungi Resistance of
2. Referenced Documents Insulation Materials and Facings
2
C1482Specification for Polyimide Flexible Cellular Ther-
2.1 ASTM Standards:
mal and Sound Absorbing Insulation
C168Terminology Relating to Thermal Insulation
C1559Test Method for Determining Wicking of Fibrous
C177Test Method for Steady-State Heat Flux Measure-
Glass Blanket Insulation (Aircraft Type)
ments and Thermal Transmission Properties by Means of
D543Practices for Evaluating the Resistance of Plastics to
Chemical Reagents
1
D638Test Method for Tensile Properties of Plastics
This specification is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.22 on
D1621Test Method for Compressive Properties of Rigid
Organic and Nonhomogeneous Inorganic Thermal Insulations.
Cellular Plastics
Current edition approved Dec. 15, 2011. Published January 2012. Originally
D2126Test Method for Response of Rigid Cellular Plastics
approved in 2004. Last previous edition approved in 2010 as C1594–10. DOI:
10.1520/C1594-11.
to Thermal and Humid Aging
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
D2863Test Method for Measuring the Minimum Oxygen
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Concentration to Support Candle-Like Combustion of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Plastics (Oxygen Index)
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1594−11
TABLE 1 Polyimide Foam Classification (inch pound)
Type II Type II Type II Type II Type II Type II
Type I Type I Type I Type III
Property Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3
Grade 1 Grade 2 Gr
...

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:C1594–10 Designation: C1594 – 11
Standard Specification for
1
Polyimide Rigid Cellular Thermal Insulation
This standard is issued under the fixed designation C1594; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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 Thisspecificationcoversthecompositionandphysicalpropertiesofpolyimidefoaminsulationwithnominaldensitiesfrom
3 3 3 3
1.0lb/ft to8.0lb/ft (16kg/m to128kg/m )andintendedforuseasthermalandsound-isolatinginsulationfortemperaturesfrom
−423°F to +600°F (−253°C to +316°C) in commercial and industrial environments.
1.1.1 The annex shall apply to this specification for marine applications.
1.1.2 This standard is designed as a material specification and not a design document.
1.1.3 The values stated in Table 1 and Table 2 are not to be used as design values. It is the buyer’s responsibility to specify
design requirements and obtain supporting documentation from the material supplier.
1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsaregiveninparenthesesforinformation
only and are approximate.
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.
1.3 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
requirements prior to use.
NOTE 1—The subject matter of this material specification is not covered by any otherASTM specification. There is no known ISO standard covering
the subject of this standard.
2. Referenced Documents
2
2.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the
Guarded-Hot-Plate Apparatus
C335 Test Method for Steady-State Heat Transfer Properties of Pipe Insulation
C390 Practice for Sampling and Acceptance of Thermal Insulation Lots
C411 Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation
C421 Test Method for Tumbling Friability of Preformed Block-Type and Preformed Pipe-Covering-Type Thermal Insulation
C447 Practice for Estimating the Maximum Use Temperature of Thermal Insulations
C518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
C634 Terminology Relating to Building and Environmental Acoustics
C665 Specification for Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing
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
C1114 Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater Apparatus
C1304 Test Method for Assessing the Odor Emission of Thermal Insulation Materials
C1338 Test Method for Determining Fungi Resistance of Insulation Materials and Facings
C1482 Specification for Polyimide Flexible Cellular Thermal and Sound Absorbing Insulation
C1559 Test Method for Determining Wicking of Fibrous Glass Blanket Insulation (Aircraft Type)
1
This specification is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.22 on Organic and
Nonhomogeneous Inorganic Thermal Insulations.
Current edition approved Sept. 1, 2010. Published October 2010. Originally approved in 2004. Last previous edition approved in 2007 as C1594–07. DOI:
10.1520/C1594-10.
Current edition approved Dec. 15, 2011. Published January 2012. Originally approved in 2004. Last previous edition approved in 2010 as C1594–10. DOI:
10.1520/C1594-11.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail] Annual Book of ASTM Standards
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

---------------------- Page: 1 ----------------------
C1594 – 11
TABLE
...