20-B Category: Antibiotics (STOPPERS FOR INJECTION VIALS) :2005-4-30 Description: Antibiotics butyl rubber stopper
Neck diameter: 13.0 + / - 0.1 mm Crown diameter: 18.8 + / - 0.2 mm Crown thickness: 3.3 + / - 0.2 mm Total height: 8.8 + / - 0.3 mm
Used for injection vials. Cervical-diameter: 13.0 + / - 0.1mm Corona-diameter: 18.8 + / - 0.2mm Corona-thickness: 3.3 + / - 0.2mm Total thickness: 8.8 + / - 0.3mm | 
