欧洲标准局IRMM JRC 参考物质 可追溯性证明文件 ERM-DA470k_IFCC traceability.pdf

EUROPEAN COMMISSION DIRECTORATE-GENERAL JOINT RESEARCH CENTRE Directorate D - Institute for Reference Materials and Measurements Standards for Innovation and sustainable Development Geel, 1.9.2014 To whom it may concern Subject: Link between CRM 470 and ERM-DA470k/IFCC In 1993, the European Commission released a certified reference material consisting of human serum certified for the concentration of 14 serum proteins. In 1996, the same material was additionally certified for antichymotrypsin. This material was referred to as CRM 470 (as it was the 470th CRM funded by the European Commission's BCR programme) or, to distinguish it from CRMs of other producers, as BCR-470. ® In 2004, the European Commission launched the European Reference Materials (ERM ) initiative and BCR-470 was re-branded as ERM-DA470. This means that physically ERM-DA470 and BCR-470 is the same material. This was also pointed out in a note of the certificate of ERM-DA470 which reads "European Reference Material ERM®- DA470 was originally certified as BCR-470." When the material became exhausted, the EC-JRC's Institute for Reference Materials and Measurements (IRMM) in collaboration with the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) produced a new batch of a certified reference material. This new batch was named ERM-DA470k/IFCC and was released in 2008. All measurements made were calibrated using samples