MaTestLab > Test Standards > ASTM D2126 Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging
Last updated 12th March 2025
ASTM D2126 Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging
ASTM D2126 outlines procedures for subjecting rigid cellular plastics to thermal and humid exposure. Given the diverse applications of these materials, simulating their behavior requires tailored exposure conditions closely aligned with their intended use. ASTM D2126 offers a range of conditions to accommodate various applications, allowing users to select the most appropriate exposure conditions according to their specific needs.
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ASTM D2126 Introduction
The ASTM D2126 test method addresses rigid cellular plastics’ thermal and humid exposure. It provides established procedures for subjecting these materials to specific environmental conditions. Widely utilized in practice, these conditions help simulate the effects of different temperatures and humidities on rigid cellular plastics. The dimensional changes recorded during testing serve various purposes, such as comparing material performance in specific environments, evaluating the stability of different materials, or setting acceptance criteria for particular applications.
ASTM D2126 Test Method
Determination of Principle Axes
In ASTM D2126, the dimensions of three principal axes are determined to the nearest 60.1 percent.
Placing Test Specimens Under Humid Conditions
The test specimens are conditioned in a circulating air oven, humidity oven, or cold box at specific temperatures and relative humidity combinations.
Recording Changes
After exposure, the specimens can return to room temperature for two hours before measuring and testing. Any alterations in the overall appearance are carefully recorded throughout the testing process.
D2126 Equipment and Sample Preparation
Specimen Detail
This test method covers procedures for rigid cellular plastics’ thermal and humid exposure.
Specimen Size
For ASTM D2126, the test specimen should weigh less than 100 grams. An oven equipped to maintain a humidity level of 63 percent with circulating air is employed to sustain the specified exposure temperature of 62°C (144°F).
D2126 Test Results and Interpretation
The ASTM D2126 test method assesses the reaction of rigid cellular plastics to thermal and humid aging.
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Tests Related to ASTM D2126
ASTM D2126 is related to tests including ASTM D883 for plastic-related terms and ASTM D1037 for determining the characteristics of wood-based materials.
Use of D2126 in Various Industries
It is one of the most applied tests for rigid cellular plastics such as polyurethane and polystyrene foams to evaluate their performance under thermal and humid aging conditions, thus ensuring products in construction and automotive sectors meet energy efficiency and safety standards.
Materials Commonly Tested with D2126
It tests rigid cellular plastics, such as polyurethane and polyisocyanurate and expanded polystyrene foams, for applications in thermal insulation, packaging, and flotation devices based on their response to environmental stressors and potential problems in performance.
Common Challenges and Troubleshooting in D2126 Testing
Environmental variability, unstable temperature and humidity levels, and poor sample preparation are some of the challenges faced by testing. Troubleshooting and minimizing variability in results require regular calibration, consistent environmental conditions, and precise specimen preparation.
Safety and Best Practices in D2126 Testing
Testing requires safe handling of cellular plastics, using well-ventilated areas, wearing PPE, and maintaining environmental chambers. The monitoring of temperature and humidity is important to provide controlled conditions that would guarantee reliable results and minimize the risk of operators.
Importance of D2126
The standard represents a critical predictor for rigid cellular plastics in both their insulation and structural applications of long-term performance. Since it simulates the conditions of aging effects brought forth by thermal and humid circumstances, quality assurance is rendered, regulatory compliance ensured, and enhanced performance achieved.
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The required number of samples or specimens should comply with the procedure given in the astm d2126 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
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The turnaround time for astm d2126 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the astm d2126 tested?
You can share your astm d2126 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm d2126 test to various testing techniques.
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