Division D.4 Reporting of results, estimation of measurement uncertainty and recovery calculation

The analytical result must be reported corrected or uncorrected for recovery. The manner of reporting and the level of recovery must be reported. The analytical result corrected for recovery shall be used for checking compliance.

The analytical result must be reported as × +/–- U whereby × is the analytical result and U is the expanded measurement uncertainty.

U is the expanded measurement uncertainty, using a coverage factor of 2 which gives a level of confidence of approximately 95 %.

The present interpretation rules of the analytical result in view of acceptance or rejection of the lot apply for the analytical result obtained on the sample for official control. In case of analysis for defence or referee purposes, the national rules apply.