Certified reference standards have been tested by multiple accedited labs and have a "known" amount of metals in them. What the press release says is that SGS was biased low

For instance...

If the reference standard sample had actually contained 1% of a metal and the lab measure only .5 percent, and this happens across multiple samples, you would have a bias low. It does not mean that Noront's samples were low in value. It means that SGS was not measuring Noront's samples accurately. That is why the reference samples are in there....to assure no mistakes are made.

It is all about accuracy. Noront can get in big trouble if they knowingly use inaccurate data to value their find. This is fraud.

I think that they and their consultant have been thorough and honest. Let's just wait and see the real results.