Commutability Study 2:
Commutability of NIST SRMs and PT/EQA Test Materials in Clinical and Research Vitamin D Assays
Study objective
To promote the standardized measurement of total 25-hydroxyvitamin D [25(OH)D] by evaluating the commutability of NIST SRMs used as “Trueness” controls and the materials used in the major PT/EQA programs.
Federal Register call
for participants, April 2015
Who can participate
- All commercial assay manufacturers
- Focus on commercially-available assay platforms
- Will consider requests for assays in development
- Clinical and research laboratories using a commercial assay platform
- Laboratories for national/subnational nutrition surveys
- Laboratories with in-house developed assays
How to participate
Contact Dr. Johanna Camara at VDSP@mail.nih.gov
Dr. Camara is a Research Chemist at the National Institute of Standards and Technology (NIST) and Director of VDSP Commutability Study 2.
For more details - including protocol, timeline, and participant requirements and collaborating agencies/organizations, download a PowerPoint presentation(2MB) or a PDF file.