SRM 3122 Hafnium (Hf) Standard Solution Lot No. 151120
This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of hafnium.  A unit of SRM 3122 consists of 50 mL of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of hafnium in a high density polyethylene bottle …