Results of the multicenter study with a new test Tina-quant Albumin in urine for the determination of the albumin concentration in urine were reported. The following specific areas are investigated: precision and accuracy, measurement range, detection limit, calibration stability, comparison with other methods of albumin determination, and the effect of various interfering factors. Our results in brief: Tina-quant Albumin in urine is a reliable and useful test which is barely influenced by endogenous and exogenous interfering factors. Agreement with other routine methods can be classed as remarkably good for an immunological method.