Performance Test Conclusion.

DOE-STD-1112-98

j ( Bri & Br )

(6.3)

i'1

SB '

(N & 1)

For performance testing purposes, the absolute value of the relative precision statistic, SB, shall

be less than or equal to 0.4 when Aai is at or above the MTL for any given radionuclide to be

considered acceptable.

5.2.4 Performance Test Conclusion. When the proficiency testing has been completed, the

performance testing laboratory shall return the results of the test to the service laboratory

within a period not to exceed 3 months. If the service laboratory does not demonstrate

satisfactory performance in the accreditation area for which they have applied, the PEPA will

send the service laboratory, as soon as feasible, a notice requiring retesting, along with the test

results. Because the bias criterion (Br) has a range of -0.25 to +0.50 and the precision

criterion (SB) is 0.4, phantom calibration uncertainties will be minimal in comparison, and will

not be considered when evaluating performance results. A complete discussion on the

rationales for these criteria can be found in ANSI N13.30, Appendix B.

5.3

On-site Assessment

To become accredited, a facility shall demonstrate adequate capability in administering a

radiobioassay program; including the technical competency of staff, adequate training of personnel,

the performance of measurements, and the record keeping and QA aspects of the program. For

initial accreditation, an on-site visit is required after the performance testing has been satisfactorily

completed. This visit shall assess the quality assurance, documentation, and technical aspects of the

direct or indirect radiobioassay program. If a DOE Contractor uses a commercial service laboratory,

an on-site assessment will also be performed of the service laboratory. Appendix A contains the

assessment criteria and a checklist to be used by the assessment team. The on-site assessment is

repeated at 3 year intervals, normally corresponding to the Performance Testing Phase.

5.3.1 Assignment of Assessors. Assessors are assigned to visit each facility. Assignments are based

on how well the assessors' individual experience matches the radiobioassay analyses to be assessed.