NORMA 30-1947
Wear testing of stones by Deval

Standard No.

NORMA 30-1947

Release Date

1947

Published By

UY-UNIT

Latest

NORMA 30-1947

Scope

This standard determines how to carry out the stone wear test using the "Deval" machine.

NORMA 30-1947 history

• 1947 NORMA 30-1947 Wear testing of stones by Deval