Over the past 15 years the NSWBTRC has distributed more than 90,000 fixed and frozen samples for 500 projects. The type of sample requested has varied over the years and has been dependent upon available techniques. In the late 1990s, 85% of samples supplied were formalin-fixed, whereas from 2000–2004 63% were frozen samples. More recently the distribution has been 46% fixed and 54% frozen. Over the past few years approximately 20% of researchers have requested both fixed and frozen samples for their projects.
