ASTM D3574 PDF

ASTM D B1 is a testing specification that measures the indentation force deflection of urethane foam and foam-like substances. ASTM D C specifies a method for measuring the compression force necessary to produce a 50% deflection over the entire top surface of the foam test . ASTM D Standard Test Methods for Flexible Cellular Materials-Slab, Bonded, and Molded Urethane Foams.

Author: Branris Tozragore
Country: Moldova, Republic of
Language: English (Spanish)
Genre: Art
Published (Last): 4 April 2016
Pages: 179
PDF File Size: 13.47 Mb
ePub File Size: 7.22 Mb
ISBN: 470-5-66645-248-5
Downloads: 19519
Price: Free* [*Free Regsitration Required]
Uploader: Musar

Asttm specimen should be tested. There are several test procedures atsm this standard to help determine the compression, deflection, tear and tensile characteristics of flexible cellular materials urethane foams and polyurethane foams. Measurements are made for tensile stress, tensile strength, and ultimate elongation. For this reason it is not possible to effectively compare measured values that are determined from specimens of various dimensions using this test method.

Density is measured using a scale that is connected to the PC.

Compression hardness ISO , ASTM D

AllroundLine for individual testing requirements and all applications The optimum solution for demanding testing applications, whether in quality control or for research projects. Samples come in a variety of forms including slab, bonded, and molded flexible cellular urethane d5374. For Test F, specimens are generally about mm long blocks with the width and depth the same as the material pad thickness.

Call satm of our engineers to learn more about which package is best for you. ASTM D specifies an additional specimen with a round cross-section and a diameter of 57 mm.

  ENCODER IC 74147 DATASHEET PDF

Compressive Properties/Compression Stress Value/Compression Stress-Strain Characteristics

Recovery time tests determine the recovery time of slow recovery memory foams. For tests I3 and M, our engineers recommend the Series Fatigue Test Machine in order asstm complete the fatigue tests.

We offer machines, apparatus, testers, tensile grips, test fixtures, clamps, holders, jigs, faces, jaws, extensometers, environmental and humidity chambers, furnaces, baths and custom solutions for unique applications.

Dog bone specimens are cut from a Forces up to 10 kN 2, lbf Low force tabletop systems Modular d574 of five frame options with adjustable test space Affordable testing option for tension, compression, bend, peel and much more. The specimen should be mm X mm X 50mm. The initial height of the specimen is determined directly by the testing machine at the beginning of the first preload cycle.

This test will measure the IFD properties of the foam specimen before and after fatigue cycling.

ASTM D Testing Equipment for Flexible Cellular Urethane Foams

Our engineers are very familiar with foam testing to ASTM D and can help guide you through the process with the correct compression test machine. You are seeking to quantify the firmness of your foam. GKP pneumatic vice grips can be used for high volume testing or for very accurate and consistent clamping force.

This testing machine is equally ideal for research and development and for routine quality assurance testing. In this scenario, the deformation behavior of the specimen is relatively complex. Tear test zstm determine the tear propagation resistance of foam.

  FORMULAIRE EUR1 SUISSE PDF

One sample is required. The density measurement process can be integrated in the test sequence. All of our test machines configured for ASTM D are supplied with perforated awtm plates for supporting the foam samples.

Have a question about conducting the test for this standard? Method I3 is similar to ISO Hysteresis tests measure the difference in area under the curves during loading and unloading, representing energy loss. ASTM D is a widely accepted test standard for testing soft polyurethane foam.

This test is similar to ISO Variations of this method are described ast, the various factory regulations. In order to be able to certify your results you need a test machine that was designed and built to the details of the standard, and you need to run the test exactly as the standard directs.

ASTM D3574 Testing Equipment for Flexible Cellular Urethane Foams

We recommend you purchase and read the full ASTM standard to achieve the best results. IFD Indentation force deflection and ILD indentation load deflection are two of the more common compression tests in this standard. By continuing to browse our website, you are agreeing to the use of cookies. If possible a completed manufactured product should be used as your testing specimen. A 40 mm cut is placed down the middle of one end and 3 samples are required.