Abstract
The difficulties encountered, and their solution, when calibrating a radioactivity standard of tritiated toluene by comparison with the NBS tritiated-water standard by means of liquid-scintillation counting, are described. Leaks in the seals of commercial vials, giving rise to uncontrolled oxygen quenching, were eliminated by modifying the seals. White plastic caps gave higher count rates than black plastic caps. A new and highly precise method of dilution was used. The ratio of the activities of the two standards was determined with a standard error of less than 0.1 percent.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The International Journal Of Applied Radiation And Isotopes
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
