00309nam a2200109Ia 4500008004100000245006200041260000900103500003000112650001400142650001500156650002800171220217s9999    xx            000 0 und d 0aEbonite- Determination of hardness by means of durometer.  c1975  aStandard number: ISO 2783  a  Ebonite  a Durometer  a Hardness determination