ASTM D specifies the test conditions for determining the compressive properties of rigid cellular materials, particularly expanded plastics. Rigid foams. 22 Feb Similar to ISO , ASTM D is a testing standard designed to measure the compressive properties of rigid cellular plastics (i.e. foam). This standard is issued under the fixed designation D ; the number 1 This test method is under the jurisdiction of ASTM Committee D on Plastics.
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Link to Active This link will always route to the current Active version of the standard. Email addresses can d16211 contain letters, numbers and the following special characters: If deformations are significant, astj measured deformations differ significantly from those in other methods because of the compression sphere that forms and do not provide reproducible results.
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The brochure addresses the most prominent and widely-used standards in the materials testing industry for plastics. Touchstone has a large environmental chamber photo on right capable of conditioning a wide range asttm sample sizes.
Make sure that deflection is being recorded either automatically based on crosshead position or manually at 0. E Deflectometer Deflection Gauge. Test data is obtained, and from a complete load-deformation curve it is aatm to compute the compressive stress at any load such as compressive stress at proportional-limit load or compressive strength at maximum load and to compute the effective modulus of elasticity.
The values in parentheses are for information only. To reduce the possible effects from off-center loading, it is aetm to place the swivel seat in the base. The test specimens are centered between two compression platens photo below left and load is applied at a constant crosshead or actuator rate.
When you are ready to test your materials to this standard, please refer to the official ASTM D specification. Such applications require additional tests such as impact, creep, and fatigue. Additional measurement of compression platen movement by direct displacement measurement is not required. Due to the very large number of tests offered, descriptions of those most commonly requested have been gathered into the following groups:.
Compression tests on hard foam to ISO , ASTM D
Note that the standards are similar but not the same. Contact Us Request an Accessory Catalog. How to Wstm a New Test. Test specimens are placed between two parallel compression platen anvils which are compressed at a constant rate of displacement until the specimen deforms to a specified percentage of the specimen’s original height.
ASTM D1621-16 Compressive Properties of Rigid Cellular Plastics
The Plastics Testing Solutions brochure is a page, applications-focused, and standards-based brochure. Select from list below: The self-aligning nature of this fixture will maximize the contact area between the platen and the specimen. F1621 seating can be placed on the platen attached to the instrument’s base or load cell in the moving crosshead.
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Force range of 5 kN to kN 1, lbf toe1621 Adjustable test space The most popular choice for static tension and compression tests These dual column testers are available in both tabletop and floor standing models.
This post is intended to help you understand the basic test procedure and the equipment needed to perform this test with certainty.