I used to be able to check the accepted values for geochemical reference materials (e.g. AGV-2, DNC-1, W2a etc.) on the USGS website, but now the website no longer displays any of the necessary information.

Does anyone know what the problem is and if it will be resolved? This has been going on since the beginning of the year, approximately.

If someone has the accepted values for AGV-2 and DNC-1 this would be especially appreciated!

Thanks for the help,

Michael