ASTM D2126-99

Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging

SCOPE
1.1 This test method covers procedures for the thermal and humid exposure of rigid cellular plastics. Conditions used shall be agreed upon between the purchaser and the supplier.  Note 1-A list of commonly used exposure conditions can be found in Table 1.
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only. Note 2-This test method resembles ISO 2796 in title only. The content is significantly different.
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 limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Jul-1999
• ICS: 83.100 - Cellular materials
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.22 - Cellular Materials - Plastics and Elastomers

Relations

• Replaced By: ASTM D2126-04 - Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging
• Effective Date: 01-Nov-2004
• Referred By: ASTM D7425/D7425M-13(2019) - Standard Specification for Spray Polyurethane Foam Used for Roofing Applications
• Effective Date: 10-Jul-1999
• Referred By: ASTM C1696-20 - Standard Guide for Industrial Thermal Insulation Systems
• Effective Date: 10-Jul-1999
• Referred By: ASTM F1551-09(2017) - Standard Test Methods for Comprehensive Characterization of Synthetic Turf Playing Surfaces and Materials
• Effective Date: 10-Jul-1999
• Referred By: ASTM C1484-10(2018) - Standard Specification for Vacuum Insulation Panels
• Effective Date: 10-Jul-1999
• Referred By: ASTM E1730-19 - Standard Specification for Rigid Foam for Use in Structural Sandwich Panel Cores
• Effective Date: 10-Jul-1999
• Referred By: ASTM C1029-20 - Standard Specification for Spray-Applied Rigid Cellular Polyurethane Thermal Insulation
• Effective Date: 10-Jul-1999
• Referred By: ASTM C591-22 - Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
• Effective Date: 10-Jul-1999
• Referred By: ASTM C1594-23 - Standard Specification for Polyimide Rigid Cellular Thermal Insulation
• Effective Date: 10-Jul-1999
• Referred By: ASTM C578-22 - Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
• Effective Date: 10-Jul-1999
• Referred By: ASTM C1126-19 - Standard Specification for Faced or Unfaced Rigid Cellular Phenolic Thermal Insulation
• Effective Date: 10-Jul-1999
• Referred By: ASTM C1902-22a - Standard Specification for Cellular Glass Insulation Used in Building and Roof Applications
• Effective Date: 10-Jul-1999
• Referred By: ASTM C1847-21 - Standard Specification for Direct Buried Pre-Insulated and Jacketed Polyurethane Bonded Low Temperature Hot Water Piping Systems
• Effective Date: 10-Jul-1999
• Referred By: ASTM C1289-23 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board
• Effective Date: 10-Jul-1999
• Referred By: ASTM C726-17 - Standard Specification for Mineral Wool Roof Insulation Board
• Effective Date: 10-Jul-1999

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:D2126–99
Standard Test Method for
Response of Rigid Cellular Plastics to Thermal and Humid
Aging
This standard is issued under the fixed designation D 2126; 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.
This standard has been approved for use by agencies of the Department of Defense.
TABLE 1 Temperature and Relative Humidity Conditions
1. Scope *
Temperature, °C (°F) Relative Humidity, %
1.1 This test method covers procedures for the thermal and
−73 6 3 (−100 6 6) ambient
humid exposure of rigid cellular plastics. Conditions used shall
−40 6 3 (−40 6 6) ambient
be agreed upon between the purchaser and the supplier.
70 6 2 (158 6 4) ambient
100 6 2 (212 6 4) ambient
NOTE 1—Alist of commonly used exposure conditions can be found in
150 6 2 (302 6 4) ambient
Table 1.
23 6 2(73 6 4) 50 6 5
38 6 2 (100.0 6 4) 97 6 3
1.2 The values stated in SI units are to be regarded as the
70 6 2 (158 6 4) 97 6 3
standard. The values in parentheses are for information only.
other temperatures and humidities selected for individual needs
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 appro- 4. Significance and Use
priate safety and health practices and determine the applica-
4.1 Because of the wide variety of potential uses of rigid
bility of regulatory limitations prior to use.
cellular plastics, artificial exposure to estimate the effective
behavior of these materials must be based, to a great extent, on
NOTE 2—This test method resembles ISO 2796 in title only. The
content is significantly different. This test method is equivalent to ISO the intended application. Toward this end, this test method is
2796 in the sampling and calculation sections. It is not equivalent to ISO
intended to recommend a variety of conditions from which one
2796 in the procedure section.
or more of the desired exposure conditions can be selected.
(Note 3)
2. Referenced Documents
4.2 The conditions recommended in this test method have
2.1 ASTM Standards:
been widely used in artificially exposing rigid cellular plastics
D 883 Terminology Relating to Plastics
and in determining the effects of various temperatures and
D 1037 Test Methods for Evaluating the Properties of
humidities on these materials. Final test measurements are
Wood-Base Fiber and Particle Panel Materials
determined after the specimens return to room temperature.
2.2 ISO Standard:
Where specified, the specimens may be tested at the exposure
ISO 2796 Cellular Plastics Rigid–Test for Dimensional
condition, but must be reported as such.
Stability
4.3 Dimensional changes measured by this test method can
be used to compare the performance of materials in a particular
3. Terminology
environment, to assess the relative stability of two or more
3.1 The terms given inTerminology D 883 are applicable to
cellular plastics, or to specify an acceptance criterion for a
this test method.
particular material. The results of this test method are not
suitable for predicting end-use product performance or char-
acteristics, nor are they adequate for engineering or design
ThistestmethodisunderthejurisdictionofASTMCommitteeD-20onPlastics
calculations.
and is the direct responsibility of Subcommittee D20.22 on Cellular Materials—
Plastics and Elastomers.
NOTE 3—Where thermal shock is known or suspected to occur due to
Current edition approved July 10, 1999. Published September 1999. Originally
rapid heating to (or cooling from) a particular temperature, guidance on
published as D 2126 – 62 T. Last previous edition D 2126 – 94.
the permissible heating or cooling rates, or both, should be obtained from
Annual Book of ASTM Standards, Vol 08.01.
the manufacturer of the material concerned.
Annual Book of ASTM Standards, Vol 04.09.
NOTE 4—The dimensional change of a specimen may vary depending
Available from American National Standards Institute, 11 W. 42nd St., 13th
Floor, New York, NY 10036. upon the age of the sample or the length of time between specimen
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D2126
preparation and the beginning of the test, or both.
maintained at one of the combinations of temperature and
relative humidity shown in Table 1. Care shall be taken such
4.4 Before proceeding with this test method, reference
that substantially free air circulation around the test specimens
shouldbemadetothespecificationofthematerialbeingtested.
occur.
Any test specimen preparation, conditioning, dimensions, or
8.2.1 Expose the specimen at this condition for 24 h (one
testing parameters covered in the materials specification, or
day) 6 1 h, 168 h (one week) 6 2 h, and 336 h (two weeks)
combination thereof, shall take precedence over those men-
6 2 h. Intermediate observations are recommended to serve as
tioned in this test method. If there are no specifications, then
a guide to full-term performance. A round-robin study has
the default conditions apply.
shown that there is no significant difference between continu-
5. Apparatus
ous exposure and exposure interrupted for up to4hfor
measuring purposes.
5.1 Balance, capable of weighing, to 0.05 %, a test speci-
8.2.2 After exposure, allow the specimens to come to room
men having a mass of 100 g or less.
temperature for 2 h before measuring and testing.
5.2 Oven, circulating-air, capable of holding the required
8.2.3 Measure specimen dimensions as described in section
temperature of exposure within 62°C (4°F).
8.1.
5.3 Cold Box, capable of maintaining the required tempera-
8.3 Visual Examination—Record change in general appear-
ture of exposure within 63°C (5°F).
ance at each stage of the testing procedure. (Use the terms
5.4 Gage, dial-type, with a minimum foot area of 6.5 cm (1
defined in Te
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