Scratch Hardness Tester
- Humboldt - H-3421
Determines quantity of soft particles in coarse aggregates on basis of scratch hardness. Apparatus consists of 1/16" (1.6mm) dia. brass rod with rounded point inserted into plunger. Overall weight of brass point and plunger is 2 ±0.1 lbs (8.9 ±0.4N). Plunger is mounted on support stand, permitting plunger to lower and raise freely. Furnished with one extra brass scratch rod.
Complies with ASTM C851.
Shipping wt. 9 lbs. (4kg)
|H-3421||Scratch Hardness Tester - Brass Rod for use with H-3420, pkg. of 10|
|HU3420-0000||Scratch Hardness Tester|