Nest Scientific Screw Cap Microcentrifuge tubes are a convenient and cost effective way to store small volumes of liquid samples securely without leaks. They are made of pure, virgin polypropylene with low levels of leachables, ideal for sensitive samples. Each vial also features an integrated silicone O-ring to further reduce risk of leaks. This style of vial is has well standardized dimensions among most manufacturers, which makes them ideal for use with existing tube racks and automated filling equipment. They also feature knurling. 

Product details:

• 1.5mL 
• 50 per sterile bag, 2000 vials total per case
• Conical - Not Self-Standing
• O-ring seal
• Sterile
• External Thread
• Knurling for automation and easy grip
• Suitable for a wide range of temperatures—from -196˚C to +121˚C
• Ideal for boiling applications
• 20,000 x G/RCF
• Well standardized, suitable for automation

Affordable quality you can rely on:

• USP Grade VI polypropylene
  
• USP Grade VI silicone O-ring
• Produced in ISO 13485:2016 and ISO 9001 facility
• Molded and packed in ISO 7 cleanroom
• E-Beam sterilized and lot tested to SAL 10^-6 to ISO 11137
• Lot tested free of pyrogens USP 85
• Lot tested free of cytotoxins/pyrogens  In Vivo USP 88 and In Vitro USP 87
• Lot tested free DNase/RNase and DNA 
• Lot tested free BSE/TSE
• Certified free of animal products