4210 Hester Rd.
Amarillo, TX 79124
(806) 374-9402 or (800) 729-9402
Fax: (806) 374-9450
Small Object Impact Test
ASTM Impact tests; D-2794, D-3029, D-4226, and G14 are done with a BYK-Gardner Light Duty Impact Tester. The impacter is a two-pound steel cylinder with a 1.27 cm. (0.50 in.) diameter round nosed end. This weight may be lifted to any desired height in a graduated guide tube approximately 40.6 cm. High (16 in.) and then dropped, subjecting the specimen to an impact force of up to 28 inch-pounds. We conducted our own "in-house" test that we might better assist our clients in choosing the right products for their application. We performed this test from a 4" drop, 8" drop, 12" drop and finally a maximum 16" drop, subjecting the sample absorber panels to the impact force of 28 inch/pounds. We also have done tests on larger sq. in areas with more weight to calculate compression. In gymnasiums where the impact is most likely to be a basketball or volleyball we believe the larger impact area has more bearing and would be glad to send you a copy of our findings. Below you'll find our report on these tests, where impact once again is a rounded 2 lb., 1/2" steel rod, it would require an object smaller than most table and chair legs to impact an acoustical absorber of this fashion.
* The only difference between specimens 2 & 3 are the plastic edges. Upon examination, we believe, at least in this small size, the cloth and mat being glued to the hard edges holds it tight. It's inability to flex from the edges at impact caused it to absorb more impact and deform the face more readily.