- In case of ASTM D 2240, it was specified to use 1kgf for A Type , 5kgf for D Type , because the durometer of rubber can have some individual errors depending on the load and speed.
- This tester has been produced based on the standards. Therefore, hardness measurement can be accurate.
- ASTM D 2240(load is specified) ISO 7619(speed is specified: Max 3.2m/s)