ASTM D1424 PDF

This standard is issued under the fixed designation D ; the number 1 This test method is under the jurisdiction of ASTM Committee D on Textiles. Jan 1, Buy ASTM D R TEST METHOD FOR TEARING STRENGTH OF FABRICS BY FALLING-PENDULUM (ELMENDORF-TYPE). The ASTM D Elmendorf based tear test is the most popular test for measuring the tearing strength of most fabrics. The Elmendorf test testing machine uses.

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Record values as read from the direct reading scale to the nearest mN gf. It is pre-notched with a Adjust the height of the pendulum stop until a smooth release is obtained.

We are confident that we have what you are looking for. In other cases, the procedure outlined in A2. If a bias atsm found, either its cause must be found and corrected or the purchaser and asttm supplier must agree to interpret future test results with consideration to the known bias. The distance between the axis and the top edges of the clamping jaws is 0. Link to Active This link will always route to the current Active version of the standard.

ASTM D1424 Tearing Strength of Fabrics by Falling-Pendulum Type (Elmendorf) Apparatus

The three woven fabric types were: For most fabrics this time period will be about 1 h. Before a meaningful statement can be made about two speci? The Ultimate Testing Technology SLY-S1 Elmendorf Tearing Tester is based on Elmendorf method to measure tearing strength of plastic films, paper, foils and other flexible packaging materials with a cut.

COF Inclined Plane Tester Measure the static coefficient of friction of various materials using a variable inclined plane and a sliding block. The machine is setup to provide this tearing energy information in grams-force.

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Ensure the pendulum is free swinging and the calibration can be veri? A number in parentheses indicates the year of last reapproval.

It is not suited for the course direction of warp knit fabrics or either direction of most other knitted fabrics. Place the gage in the stationary specimen clamp in the usual manner for testing fabric. ASTM D seam str The test specimens should then be randomly assigned in equal numbers to each laboratory for testing.

If necessary, adjust the height of the knife. FT-F1 Fogging tester to to test for fogging on upholstery material and time frame for testing. The average results from the two laboratories should be compared using appropriate statistical analysis and an acceptable probability level chosen by the two parties before the testing began. Apparatus is commercially available. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Four of the eight specimens were tested on one day and four specimens were tested on a second day. The last approved version of this historical standard is referenced on www.

Work Item s – proposed revisions of this standard. When scratches are evident, touch up with? Sampling and Test Specimens 7.

ASTM D Tearing Strength of Fabrics by Falling-Pendulum (Elmendorf-Type) Apparatus_百度文库

Analysis of the data was conducted using Practice D d1244 Practice D See Annex A1, if adjustment is required. Align, if necessary, by turning the leveling thumb screw at the left end of the tester base. 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. The strength of these tears must be designed and manufactured carefully to prevent the tears from extending excessively, thereby degrading the style look.

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Movement of the instrument during the swinging of the pendulum is a signi? Ensure that there is no perceptible movement of the tester base or bench during the swing of the pendulum. Catch the pendulum just after the threshold of its backward swing and return to its locked starting position. Replace the knife blade if necessary.

Ensure the gage is positioned with the wide dimension upwards and the projection extending over the edge of the stationary clamp far enough such that the knife can be adjusted 6 to the bottom edge of the gage.

Do not oil the? The specimen should lie free with its upper area directed toward the pendulum to ensure a shearing action. Vacuum Leak Tester for bottles for food, chemical and pharmaceutical applications. The average results from the two laboratories should be compared using appropriate statistical analysis and an acceptable probability level chosen by the two parties before the testing began.

Note when puckering occurs during the test. The lower the follow-through angle the more energy has been transferred into tearing the specimen. WAFT direction is perpendicular to the orientation of the weaving machine.

Press and hold down the pendulum stop and let the pendulum swing freely.