The Proficiency Testing Advisory Service (PTAS) provides advice and information on a wide range of proficiency testing (PT) issues. Advice is available to both the users of PT schemes and those that manage the schemes. Such advice and information may include:
- Availability of PT schemes in a particular field of interest
- How to select and use an appropriate PT scheme
- How to interpret data within a PT scheme
- Help and advice on setting up a new PT scheme