EFSA has published a checklist on the OECD 106 batch sorption study guideline in the form of a Technical Report. This provides supplementary information on the conduct, evaluation and reporting of OECD 106 studies. Topics covered include analytical methods, selection of appropriate soil/solution ratios, mass and test substance stability and quality criteria on the goodness of fit and parameter reliability.
JSC considers the report to offer useful clarification on the conduct and evaluation of OECD 106 studies. However, it appears to introduce more stringent requirements in some respects, such as the validity of distribution coefficient (kd) calculations
EFSA states that the checklist is not intended to replace any existing national guidelines or the basic quality checks in the OECD guidance, which should still be used. However, EFSA also states that the checklist should be considered whenever an OECD 106 study is evaluated by an Applicant or Regulatory Authority. It is therefore likely that Regulatory Authorities will expect Applicants to meet its requirements.
For advice on the conduct and evaluation of OECD 106 studies, risk assessment and further information on the registration of plant protection products, biocides or general chemicals, or any other regulatory issues, please contact JSC on +44 (0)1423 520245,firstname.lastname@example.org.
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