STANDARD FOR HARDNESS 46 -48 HRC; EQUIPMENT: PRAZIS DHT-02 HARDOMETER/WILSON DU 1194 HARDOMETER; REPEAT IBILITY: UNCERTAINTY /- 0.3 HRC
STANDARD FOR HARDNESS 46 -48 HRC; EQUIPMENT: PRAZIS DHT-02 HARDOMETER/WILSON DU 1194 HARDOMETER; REPEAT IBILITY: UNCERTAINTY /- 0.3 HRC