These tubes are suitable for tissue culture work and general bacteriological use. Manufactured from 51 expansion borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class B requirements. Modular trays are shrink-wrapped in plastic film. No marking spot. Supplied without caps.
- 73760 series and 90 series items that end in ‘F’ have flat bottoms which contribute to stability
- 73770 series and 90 series items that end in ‘R’ are produced with a round bottom