培养小瓶采用了长帽深色旋盖来确保安全，瓶身由Wheaton33低析出硼硅玻璃制造；

These culture vials feature deep-skirted screw caps to allow safer, more dependable handling when working with infectious materials. Pre-attached solid-top black phenolic screw cap with 14B rubber liner can be autoclaved. Vials are packaged in corrugated trays with partitions. Vials are manufactured from Wheaton 33 low extractable borosilicate glass that conforms to ASTM Type I, Class A and USP Type I requirements. Use M-T Vial File (Cat. No. 228780) for storing 4 mL vials.

• 4, 8 and 12 mL size
• Wheaton 33 low extractable borosilicate glass
• Deep-skirted black phenolic screw cap with 14B rubber liner
• Autoclavable