ASTM C1484-07
(Specification)Standard Specification for Vacuum Insulation Panels
Standard Specification for Vacuum Insulation Panels
ABSTRACT
This specification covers the general requirements for vacuum insulation panels (VIP). These panels have been used wherever high thermal resistance is desired in confined space applications, such as transportation, equipment, and appliances. The panel barrier consists of one or more layers of materials whose primary functions are to control gas diffusion to the core, and to provide mechanical protection. The core shall comprise a system of cells, microspheres, powders, fibers, aerogels, or laminates, whose chemical composition shall be organic, inorganic, or metallic. The physical and mechanical properties of vacuum insulation panels are presented in details. The compressive resistance, panel barrier permeance, and center-of-panel thermal resistivit shall be tested to meet the requirements prescribed. The effective thermal resistance differs significantly from the product of the center-of-panel resistivity and the thickness, and this system characteristic must take into account the details of the overall VIP design as well as its installation. The creep and dimensional stability at service condition shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers the general requirements for Vacuum Insulation Panels (VIP). These panels have been used wherever high thermal resistance is desired in confined space applications, such as transportation, equipment, and appliances.
1.2 Vacuum panels typically exhibit an edge effect due to differences between panel core and panel barrier thermal properties. This specification applies to composite panels whose center-of-panel apparent thermal resistivities (sec. 3.2.3) typically range from 87 to 870 mK/W (12.5 to 125 hrft2F/Btuin) at 24°C (75°F) mean, and whose intended service temperature boundaries range from -70 to 480°C (-94 to 900°F).
1.3 The specification applies to panels encompassing evacuated space with: some means of preventing panel collapse due to atmospheric pressure, some means of reducing radiation heat transfer, and some means of reducing the mean free path of the remaining gas molecules.
1.4 Limitations
1.4.1 The specification is intended for evacuated planar composites; it does not apply to non-planar evacuated self-supporting structures, such as containers or bottles with evacuated walls.
1.4.2 The specification describes the thermal performance considerations in the use of these insulations. Because this market is still developing, discrete classes of products have not yet been defined and standard performance values are not yet available.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 specifications and determine the applicability of regulatory limitations prior to use. For specific safety considerations see Annex A1.
General Information
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Standards Content (Sample)
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Designation: C 1484 – 07
Standard Specification for
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Vacuum Insulation Panels
This standard is issued under the fixed designation C 1484; 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 2. Referenced Documents
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1.1 This specification covers the general requirements for 2.1 ASTM Standards:
Vacuum Insulation Panels (VIP). These panels have been used C 165 Test Method for Measuring Compressive Properties
wherever high thermal resistance is desired in confined space of Thermal Insulations
applications, such as transportation, equipment, and appli- C 168 Terminology Relating to Thermal Insulation
ances. C 177 Test Method for Steady-State Heat Flux Measure-
1.2 Vacuum panels typically exhibit an edge effect due to ments and Thermal Transmission Properties by Means of
differences between panel core and panel barrier thermal the Guarded-Hot-Plate Apparatus
properties. This specification applies to composite panels C 203 Test Methods for Breaking Load and Flexural Prop-
whose center-of-panel apparent thermal resistivities (sec. erties of Block-Type Thermal Insulation
3.2.3) typically range from 87 to 870 m·K/W (12.5 to 125 C 480 Test Method for Flexure Creep of Sandwich Con-
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hr·ft ·°F/Btu·in) at 24°C (75°F) mean, and whose intended structions
service temperature boundaries range from –70 to 480°C (–94 C 518 Test Method for Steady-State Thermal Transmission
to 900°F). Properties by Means of the Heat Flow Meter Apparatus
1.3 Thespecificationappliestopanelsencompassingevacu- C 740 Practice for Evacuated Reflective Insulation In Cryo-
ated space with: some means of preventing panel collapse due genic Service
to atmospheric pressure, some means of reducing radiation C 1045 Practice for Calculating Thermal Transmission
heat transfer, and some means of reducing the mean free path Properties Under Steady-State Conditions
of the remaining gas molecules. C 1055 Guide for Heated System Surface Conditions that
1.4 Limitations Produce Contact Burn Injuries
1.4.1 The specification is intended for evacuated planar C 1058 Practice for Selecting Temperatures for Evaluating
composites; it does not apply to non-planar evacuated self- and Reporting Thermal Properties of Thermal Insulation
supporting structures, such as containers or bottles with evacu- C 1114 TestMethodforSteady-StateThermalTransmission
ated walls. Properties by Means of the Thin-Heater Apparatus
1.4.2 The specification describes the thermal performance C 1136 Specification for Flexible, Low Permeance Vapor
considerations in the use of these insulations. Because this Retarders for Thermal Insulation
market is still developing, discrete classes of products have not C 1363 Test Method for Thermal Performance of Building
yet been defined and standard performance values are not yet Materials and Envelope Assemblies by Means of a Hot
available. Box Apparatus
1.5 The values stated in SI units are to be regarded as the C 1667 Standard Test Method for Using Heat Flow Meter
standard. The values given in parentheses are for information Apparatus to Measure the Center-of-Panel Thermal Resis-
only. tivity of Vacuum Panels
1.6 This standard does not purport to address all of the D 999 Test Methods for Vibration Testing of Shipping
safety concerns, if any, associated with its use. It is the Containers
responsibility of the user of this standard to establish appro- D 1434 Test Method for Determining Gas Permeability
priate safety and health specifications and determine the Characteristics of Plastic Film and Sheeting
applicability of regulatory limitations prior to use. For specific D 2221 Test Method for Creep Properties of Package Cush-
safety considerations see Annex A1. ioning Materials
D 2126 TestMethodforResponseofRigidCellularPlastics
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This specification is under the jurisdiction of ASTM Committee C16 on
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Thermal Insulation and is the direct responsibility of Subcommittee C16.22 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Organic and Nonhomogeneous Inorganic Thermal Insulations. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Sept. 1, 2007. Published September 2007. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 2000. Last previous edition approved in 2001 as C 1484-01. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C1484–07
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