1. IFCC EQAS for Reference Laboratories ________________________________________ http://www.dgkl-rfb.de:81

2. SUM160 SUM160

4. Sodium in Human Serum IFCC RELA 2003 Sample ASample B mmol/l Mean (all)141.24135.60 n66 SD (all)0.810.83 RSD (%)0.570.61

6. ALT in Human Serum IFCC RELA-1 All Results Sample ASample B U/L Mean145.81182.23 n10 SD3.884.75 RSD (%)2.662.61

8. Glucose in Human Serum CCQM-K11IFCC RELA-2003 Meas. Principle IDMS Hexokinase Sample ASample BSample ASample BSample ASample B mg/g mg/dl Mean0.77621.4816190.43161.26195.00164.00 n332211 SD0.00350.03000.760.33 RSD (%)0.462.030.400.20 Range (%)0.893.960.560.29 Bias (%):2.41.7

10. Uric Acid in Human Serum IFCC RELA-2003 Meas. Principle IDMSHPLC Sample ASample BSample ASample B µmol/l Mean508.73398.47543.10430.70 n4411 SD5.114.56 RSD (%)1.001.14 Bias (%): 6.88.1

13. Cholesterol in Human Serum IFCC RELA-2003 Meas. Principle IDMSAbell-Kendall Sample ASample BSample ASample B mg/dl M (all)231,13166,81237,80171,36 n5533 SD1,760,920,250,45 RSD (%)0,760,550,100,26 Bias (%):2,92,7

14. Cholesterol in Human Serum CCQM-K6IFCC RELA-2003 Meas. Principle IDMS Sample ASample BSample ASample B mg/g mg/dl M (all)2,19811,7331231,13166,81 n7755 SD0,03240,02061,760,92 RSD (%)1,471,190,760,55

16. Reference Procedures versus Routine Procedures ____________________________________________________________________________________________

19. DGKL Homepage for IFCC Reference Laboratory Intercomparison Surveys ________________________________________________ http:/www.dgkl-rfb.de:81

20. IFCC EXTERNAL QUALITY ASSESSMENT SCHEME FOR REFERENCE (CALIBRATION) LABORATORIES IN LABORATORY MEDICINE PROCEDURES