ABSTRACT
Specification. 14. ILAC G9: 1996 Guidelines for the Selection and Use of Certified Reference
Materials. 15. ILAC G12: 2000 Guidelines for the Requirements for the Competence of
Reference Material Producers. 16. ILAC G13: 2000 Guidelines for the Requirements for the Competence of Pro-
viders of Proficiency Testing Schemes. 17. ILAC G15: 2001 Guidance for Accreditation to ISO=IEC 17025. 18. ILAC G17: 2002 Guidance for Introducing the Concept of Uncertainty of
Measurement in Testing in Association with the Application of the Standard ISO=IEC 17025 Note: Other Guidelines produced by Regional Accreditation Bodies are also relevant here (see website addresses in Sec. D, nos. 7, 8, and 9 below). In addition, most national accreditation bodies issue guidance in support of their requirements (usually based on ISO standards).
