date:Dec 11, 2013
by having all participants use the same Reference Benchmark Standard to remove the potential differences attributable to using multiple reference standards. Introducing a common reference baseline across all participants will provide more focused and better guidance as to differences in methods and laboratories' practices in the PTP, from a statistical point of view.
The PTP was launched by the ISC in 2011 and in addition to members of the ISC, companies, laboratories and research organisation