•Brief introduction: This product is used with NBS abrasion tester. Its hardness is (62±3) SHORE A (measured by Shore A hardness tester); it must be stored at (23±2) °C or lower than (23±2) °C. Temperature, sealed direct sunlight can not be exposed to the environment and the storage period can not exceed 6 months;
Simple use method:
1) Take out a standard rubber test piece (25mm*25mm), install it on the test piece seat on the arm of the NBS abrasion tester with double-sided tape with a width of 25 mm, and put down the force arm. The standard rubber test piece is brought into contact with the 40#NBS special abrasion-resistant sandpaper on the NBS abrasion tester drum. 2) Turn on the machine power switch and its equipped vacuum cleaner power switch, set a large number of tests and zero the counter, press the "Test" button to start the machine to start pre-grinding, when the standard rubber test piece abrasions out the curvature When it matches the abrasion-resistant sandpaper completely, press the "Test" button again to stop the pre-grinding. If the abrasion-resistant sandpaper is just pasted on the NBS abrasion tester drum, the first use should be pre-grounded with standard non-black skin material for 500 revolutions and then with standard rubber test piece for 500 revolutions. . •Technical specifications: Product specifications: 210x25x9mm Hardness: 60±2°A (according to ASTM D 2240-75) abrasion index: 330 ± 30 (according to ASTM D 1630-74) Tilt angle at one end: 45° Place of Origin: United States •Standard for : ASTM D1630, SATRA TM 221D
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