P
piningg
We are an ISO 17025 Nata laboratory and all our hardness blocks are supplied by an NVLAP Accredited laboratories..
The most used blocks are currently running out of space for indentations and just found out a company in China ( ISO 9001 certified ) that makes several hardness tester and standardized blocks as well for more than 50 years...
Because they were cheap, I did give it a go and buy some blocks with them but unfortunately they did not supply me any papers with it.
Just a paper in chinese character stating the mean Hardness and which scale..
They were honest to tell me that they are not a ISO 17025 laboratory and they are just manufacturer ( ISO 9001 ) certified.
I've checked the blocks at my end in reference to ISO 6508.3 and its within the acceptable hardness and uniformity.
It's a shame that we cannot use them because they are not traceable especially if they 200% cheaper...LOL
The most used blocks are currently running out of space for indentations and just found out a company in China ( ISO 9001 certified ) that makes several hardness tester and standardized blocks as well for more than 50 years...
Because they were cheap, I did give it a go and buy some blocks with them but unfortunately they did not supply me any papers with it.
Just a paper in chinese character stating the mean Hardness and which scale..
They were honest to tell me that they are not a ISO 17025 laboratory and they are just manufacturer ( ISO 9001 ) certified.
I've checked the blocks at my end in reference to ISO 6508.3 and its within the acceptable hardness and uniformity.
It's a shame that we cannot use them because they are not traceable especially if they 200% cheaper...LOL