ISO 6507

VICKERS HARDNESS

HISTORICAL

Year

2016

2017

2018

2019

2020

Number of participants

18

16

20

23

14

Participants OK

14

10

12

16

8

Participants NOT OK

3

4

4

5

4

Participants CANCELED

1

2

4

2

8

References:

Participants OK: All properties were determined correctly

Participants NOT OK: Some or all of the properties were not determined correctly

Participants CANCELED: A participant who has decided not to continue or has not submitted results before the deadline.