MaterialPET/GLASSCap colorYellowAdditiveGel & Clot ActivatorSpecimenSerumSpecs13*75mm,13*100mm,16*100mmDraw volume1-9mlMax. vacuum degree toerance±10%Invert the tube for 6-8 times gently and centrifuge for 5-10 minutes at 1200-1500g after 15-30 minutes’ complete coagulation.