BD Vacutainer PST Tubes (GOLD TOP PST TUBE 3ml) || Part Number: BD 367960 || FMC part Number: 87-4544-4 || Single use tube used to collect, separate, transport or process blood specimens for laboratory determinations for in vitro diagnostic use. || The concentrate is formulated to be used with a three steam hemodialysis machine which is calibrated for acid and bicarbonate concentrates.