WHEATON W985915
Tubes and closures have same coefficient of expansion to enhance leakproof qualities. White marking area aids in easy sample identification. Vials withstand temperatures from 121°C to 196°C (250 to 384°F). Flat-bottom vials have conical shaped wells and are self standing. Exacting round-bottom vials allow centrifugation up to 17,000 max RCF (xg).