Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Design requirements for EQAS<br>5 Requirements for organizations conducting EQAS<br>6 Assessment of analytical procedures<br>7 Using results to identify possible deficiencies<br>8 Archiving documents<br>9 Confidentiality<br>Bibliography