Standard Laboratories, Inc. is now handling the Hardgrove Grindability Index (HGI) and Reference Materials (RM) production and sales.
For more information, please visit their website or contact:
Tim Hutchison
Standard Laboratories, Inc.
8451 River King Drive
Freeburg, IL 62243
1-618-539-5836 Phone Ext 7515
1-618-539-5839 Fax
thutchison@standardlabs.com