Type: SST TUBE Specimen preparation: Serum free from hemolysis is the recommended specimens. Allow blood samples to clot (15 mins). Separate the serum from the cells by centrifuging for 10 minutes. Store serum at 2-8°C until analysis. Storage/Transport: REFRIGERATED Stability: Albumin is stable in serum for one week at room temperature (18 - 25°C) and for one month refrigerated (2 - 8°C).