离心管旋盖盖为有PTFE膜的胶垫黑色酚醛塑料盖,管身有可持久保存的白色瓷釉刻度和标签区,有精细刻度,刻度0-1ml之间X小刻度是0.05ml;1-3mlX小刻度是0.01ml;3-6mlX小刻度是0.2ml;6-10mlX小刻度是0.5ml;10-100mlX小刻度是1ml.