Division E Batch characterisation:

the methods used for verification and for certification must:

• be applied under metrologically valid conditions,

• have been properly technically validated before use,

• have precision and accuracy compatible with the target uncertainty;

each set of measurements must:

• be traceable to the stated references, and

• be accompanied by an uncertainty statement whenever possible;

participating laboratories must:

• have the required competence for the execution of the task,

• be able to achieve traceability to the required stated references,

• be able to estimate its measurement uncertainty,

• have in place a sufficient and appropriate quality assurance system.