• Individually wrapped sterile pipettes
• Bi-directional (positive and negative) graduations are printed in bold easy-to-read ink
• Premium material barrier plug to prevent overfill
• Color coded stripes and packaging enable quick volume identification
• Gamma Sterilized, DNase/RNase/Pyrogen Free
United Scientific™ serological pipettes feature black graduations for precise reading and accurate dispensing. Reverse graduations show volume removed or remaining on all pipettes larger than 1 mL. Negative graduations provide additional pipetting volume. Manufactured from transparent USP Class VI polystyrene and sterilized by gamma irradiation. Each lot is DNase, RNase, & Pyrogen free. Pipettes are individually wrapped in plastic/paper easy-to-peel packs. Manufactured to ASTM Standard Specification for Serological Pipettes E-934.