Compression Set Testing Under Constant Deflection by ASTM D395 method B measuring the capacity of an elastomeric material to get back to its original thickness or shape after compression stress is applied at a certain temperature. This test helps in identifying the best elastomer for industrial use.
Average 30% Cost Savings
100% Confidentiality Guarantee
Free, No-obligation Consultation
100% Customer Satisfaction
TRUSTED BY ENGINEERS FROM
ASTM D395B Compression Set Testing
Compression Set Testing Under Constant Deflection by ASTM D395 method B measuring the capacity of an elastomeric material to get back to its original thickness or shape after compression stress is applied at a certain temperature. This test helps in identifying the best elastomer for industrial use.
Scope:
Compression Set Testing by ASTM D395 method B is the process of measuring the capacity of an elastomeric material to get back to its original thickness or shape after compression stress is applied at a certain temperature. Elastomers lose the ability to return to their original thickness when compressed for a prolonged period. Results obtained from compression set testing by ASTM D395 are critical for determining and producing the best elastomeric materials for industrial application. As an example, a compression set is essential for sealing operations.
Test Procedure:
ASTM D395 test specimen with known thickness is deformed (compressed) up to 25% of its size using a compressing machine for a given time. Spacers are used while compressing for precise measurements, which have their own thickness. A recovery time of 30 minutes is given before the sample is measured again. The value of percentage decrease thus derived indicates the percentage a material sample fails to recover of its original size.
Specimen size:
Cylindrical disc specimen sizes categorized into Type 1 & Type 2
In type 1, thickness is 12.5 mm +/- 0.5 mm and diameter is 29.0 mm +/- 0.5 mm
In type 2, thickness is 6.0 mm +/- 0.2 mm and diameter is 13.0 mm +/- 0.2 mm
Data:
The compression set is stated as a percentage of the original deflection.
CB = [(To-Ti)/(To-Tn)] x100
Where,
CB = Compression Set
To = Original thickness of the sample
Ti= Final thickness of the sampleTn = Thickness of the spacers used
Conclusion:
ASTM D395 method B is a standard test method for rubber compression set under constant deflection in air.
ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 test is a standard test method for the analysis of sulfochromate etch solutions used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
ASTM G65 measures the resistance of metallic materials to abrasion using the dry sand/rubber wheel apparatus. The quality, durability, and toughness of the sample are determined using this test. Metallic materials are ranked in their resistance to scratching abrasion under a controlled environment.
ASTM E2141 test methods provide accelerated aging and monitoring of the performance of time-dependent electrochromic devices (ECD) integrated in insulating glass units (IGU). This test helps to understand the relative serviceability of electrochromic glazings applied on ECD.
ASTM C724 test method is used in analyzing the quality and ease of maintenance of a ceramic decoration on architectural-type glass. This test method is useful in the acknowledgment of technical standards.
Send us a request
Process for testing
STEP 01
You share material and testing requirements with us
STEP 02
You ship your sample to us or arrange for us to pick it up.
STEP 03
We deliver the test report to your email.
Just share your testing requirements and leave the rest on us!
Free, no-obligation consultation
Guaranteed confidentiality
Quick turnaround time
Hassle-free process
Let us combine our capabilities to achieve success!!
