增大了40%瓶口使得更易取样同时减少自动取样针的损害，I型硼硅玻璃制造；

Wheaton E-Z Vials feature a 40% larger neck opening than standard opening vials. The larger opening improves sample accessibility while reducing auto sampler needle damage. Vial capacity has been increased from 1.5 to 1.8 mL. E-Z Vials are designed for use with 11 mm aluminum seals. E-Z Vials are manufactured from Type I borosilicate glass and are packaged in shrink-wrapped trays of 100 for convenience and cleanliness.

• 40% large opening
• Manufactured from borosilicate glass
• Use with 11 mm aluminum seals
• Limited volume insert
• Purchase vials and caps separately 
  or together in Convenience Packs