MaTestLab > Test Standards > ASTM D395 Standard Test Methods for Rubber Property-Compression Set

ASTM D395 Standard Test Methods for Rubber Property-Compression Set

ASTM D395 is a widely recognized standard that provides test methods for evaluating the compression set properties of rubber materials. The compression set test helps assess the ability of rubber to recover its original shape after being subjected to compressive forces over a specified period. Rubber samples, used in machinery mountings, vibration dampers, and seals, are subjected to compressive stresses in air or liquid media. The values stated in SI units are to be regarded as the standard for ASTM D395 test results.

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Introduction to ASTM D395

ASTM D395 establishes standard test methods for measuring the compression set properties of rubber materials. Compression set refers to the permanent deformation or loss of elastic properties of rubber after being subjected to compression and released. This property is crucial for evaluating the resilience and dimensional stability of rubber products. ASTM D395 test methods provide a consistent and reliable way to assess the compression set behavior of rubber materials under controlled conditions. There are three test methods described in ASTM D395: A-Compression Set Under Constant Force in Air; B-Compression Set Under Constant Deflection in Air; and C-Compression Set Under Constant Deflection in Air Considering Material Hardness. The choice of test method is as per the requirement, however, B is the methods used commonly. 

The ASTM D395 test method is essential in quality control and material selection for rubber components used in various industries, including automotive, aerospace, and manufacturing. MaTestLab has the best network of testing labs in the USA to carry out ASTM D395 test for our clients.

ASTM D395 Test Method

The ASTM D395 standard consists of precision-machined compression platens, a compression chamber, a means to apply and release the compressive force and a temperature-controlled environment. The method proceeds as follows:

Test ProcedureThe test specimens are preconditioned under specific temperature and humidity conditions and then subjected to a specified compression force. Later, the specimens are released and the extent of their residual deformation is measured. The compression set value is calculated as the percentage of the original deformation that remains after the release of the compressive force.
Data Analysis and ReportingThe test results provide the compression set values for the rubber material under the specified testing conditions and the results are reported. 

ASTM D395 Specimens

Specimen detailsASTM D395 specimens are cylindrical or dumbbell-shaped, based on the material and testing requirements.
Specimen dimensionsThe dimensions and thickness of the specimens are defined in accordance with the specific requirements for each product grade.
Specimen preparationSpecimen preparation guidelines include cutting, molding, or other suitable methods specific to the rubber material being tested.

ASTM D395 Results

The results of ASTM D395 tests provide information on the compression set properties of rubber materials, including the compression set value which is the percentage of deformation that remains after the release of the compressive force. Lower values indicate better elastic recovery and dimensional stability of the rubber material.

Tests Related to ASTM D395

ASTM D575: Standard Test Methods for Rubber Properties in Compression is a related standard. 

FAQ's

Where can I get the astm d395 tested?

You can share your astm d395 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 d395 test to various testing techniques.

How much do I need to pay for the astm d395 test?

Please contact us for a detailed quote for your astm d395 testing needs. Cost incurred to carry out different astm d395 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.

How many samples are required for astm d395?

The required number of samples or specimens should comply with the procedure given in the astm d395 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.

How much discount can I get on the astm d395 test?

MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.

How many days will it take to complete the astm d395 test?

The turnaround time for astm d395 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 d395 tested?

You can share your astm d395 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 d395 test to various testing techniques.

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