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 ... Dosage: 1.8ml, 2.7ml Maximum 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