TM92-04 Bottles for Tritium Analyses

It has been a policy at the National Water Quality Laboratory (NWQL) that 1-liter glass bottles with polyseal caps were required for low-level tritium samples. (Specifically, Lab Code 1043 going to the University of Miami and Lab Code 1565 going to the Reston Tritium Lab.) Recently, there have been numerous instances of these bottles breaking in the field, in transit, and after arrival here at the NWQL. Investigation determined that high-density polyethylene (HDPE) bottles with polyseal caps could be used for these low-level samples. Two types of HDPE bottles were sent both to the University of Miami and the Reston Tritium Lab for QA analysis. The results showed no contamination, either type would be acceptable. The NWQL chose the less expensive of the two to stock here in DENSUPPLY. These can be requested as 1-liter HDPE bottles with polyseal caps for tritium analysis. They are now in stock and can be ordered immediately upon distribution of this memo.