Hi all 

Currently we are trying to perform the standard method of ISO11494, but due to the standard only goes up to 95% fineness and we would like to increase to 990 or even higher. Does it seems reasonable using this method if we change the calibration solution. 

Secondly due to we don't licences to liquid argon, which means if we purged the machine, our runtime on the machine will be significantly shorten.

Best Regards

Tim