Normal Serum Tubes Red Cap Blood collection tubes contain no additives, no anticoagulant or procoagulant ingredients, and only vacuum. Routine serum biochemistry, blood bank, and serological-related tests, used for a variety of biochemical and immunological tests, such as measuring syphilis, hepatitis B, etc., do not require shaking after blood drawing. The type of sample preparation was serum. After blood collection, it was kept at 37 °C for more than 30 minutes, centrifuged, and the upper layer of serum was used for preservation.Black Top Glass Blood Collection Tubes with Write-On Labels for Medical Sample Storage are available in a variety of sizes and capacities. The tubes are RNase- and DNase-free. They are autoclavable and can be reused.What is a Blood Collection Tube?A blood collection tube is a plastic or glass tube with a rubber stopper on one end. It is used to collect a sample of blood for testing. The stopper is usually coated with a preservative to keep the blood from clotting.The Use of Different Colors and Sizes of Vacuum Blood Collection Tubes:Volume/mlSize/mmAdditiveSeparatorMaterialCap ColorClosure2ml13X75Clot ActivatorGelPET/GLASSGold Top TubeSafety Cap Rubber or Rubber Stopper3ml13X75Clot Activator4ml13X75Clot Activator5ml13X75Clot Activator6ml13X100Clot Activator7ml13X100Clot Activator8ml16X100Clot Activator9ml16X100Clot Activator10ml16X100Clot ActivatorIf You Need a Customized Vacuum Blood collection tube, Please Contact Us
