PT tube: CE, ISO13485. Spec.:13*75, 13*100, 16*100. ... available. Additive:Sodium Citrate: 1: 9 Body: glass, PET, PP. PT tube:Cap color: blue.Standard:CE, ISO13485.Specifications: 13*75 ... Sampling Dosage: 1.8ml, 2.7mlMaximum Vacuum Tolerance: ±10%Description: PT tubes are applicable to the checks for blood coagulation. The ... tube is suitable fixed to the double direction flexible needles. PT tube