B” type needles has a 90° bevel for precise pipetting. This design relases drops completely, for maximum repreducibility. Ideal for HPLC sample injection. Plunger: stainless steel. Barrel: borosilicate glass. Precision: < +/- 1% of the volume. Main use: sample dosage for gas chromatography & HPLC valves & autosamplers.
