The Regular Interlaboratory Counting Exchanges (RICE) proficiency testing scheme assesses the proficiency of laboratories counting asbestos fibres in air.
Schedule
You can find all the dates for the dispatch of samples, deadlines for receiving results, and when reports are available in the document asbestos proficiency test schedule.
Group reports
Get the latest RICE group reports.
Previous reports are available on the National Archives website.
Analytes in the scheme
Asbestos fibres mounted on microscope slides.
Who should participate
UK laboratories are required to be accredited by the United Kingdom Accreditation Service (UKAS) to ISO 17025 to undertake this particular analysis as part of assessing clearance under the Control of Asbestos Regulations (CAR).
Participation in RICE in the United Kingdom is recommended in the HSE guidance document, HSG 248 Asbestos: The analyst's guide for sampling, analysis and clearance procedures, and is a precondition for accreditation of this analysis to ISO 17025.
Participation in the scheme is also open to non-UK laboratories.
How the scheme works
Currently there are 3 sample distributions per annum. Each distribution is a round robin wherein batches of reference slides are circulated between small cohorts of laboratories, typically 2 laboratories per cohort. Delivery date and deadlines for submission of results are emailed to participants prior to round commencement. Upon submission of results participants receive initially a provisional report and a certification report upon completion of the particular round.
Counts submitted are compared with reference values for each slide and are categorised as A, B or C. After 4 rounds have been completed, if 75% or more of the counts are in the categories A or B the laboratory is classed as 'satisfactory’.
Detailed guidance
Detailed guidance, including how the scheme operates and hints and tips for participants is available in the information book for participants.
Quality control samples
RICE sample types, prices and how to order.
Login to enter data
Participating laboratories, login to enter your data online.
Get in touch
For more information or to make an enquiry about HSE’s testing and monitoring services get in touch on GOV.UK.
Contact us