TY - JOUR A1 - Schmidt, Anita A1 - Örnemark, U. A1 - Golze, Manfred A1 - Henriksen, G.M. T1 - Surveys on the accreditation of providers of proficiency testing and external quality assessment schemes JF - Accreditation and quality assurance KW - Interlaboratory comparison KW - Proficiency testing KW - External quality assessment KW - Accreditation KW - Certification PY - 2006 DO - https://doi.org/10.1007/s00769-006-0161-5 SN - 0949-1775 SN - 1432-0517 VL - 11 IS - 8-9 SP - 379 EP - 384 PB - Springer CY - Berlin AN - OPUS4-12814 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -