Product Description We provide a full offering of Vacuum Blood Collection Tubes in both glass and plastic. All the Tubes offer a safe method of blood collection. 1. Plain tube, Glucose tube, Serum tube, ESR tube, Citrate tube, Heparin tube, EDTA tube 2. Specimen: Serum. The tube is used for clinical biochemistry and immunology. 3. Specs: 13× 75 mm; 13× 100 mm; 16× 100 mm 4. Draw volume: 3-10 ml 5. Storage temperature: 4-25º C 6. Max. Vacuum degree tolerance: ± 10%