High quality disposable ESR blood collection tubes, Black Cap, 1.6ml, 2.4ml, 3.2ml

ESR Tube is mainil used for Erythrocyte Sedimentation Rate test,it contains buffered Sodium Citrate solution with the concentration of 3.8% (0.129mol/L).The mixing ratio of blood to sodium citrate is 4:1.It is suitable for the ESR tests for subjects of different gender and ages,with highly related coefficient comparing with the westtren method.