Designed for use with the Caraway technique

·         Packed in lint-free boxes

·         Ends may be sealed with clay or caps

·         Heparinized tubes are evenly coated with ammonium heparin to prevent coagulation and do not interfere with sodium identification

·         Sodium or lithium heparin is available as a special order

·         Manufactured from 90 expansion soda lime glass conforming to USP Type III requirements