“A” type needles are designed for optimum penetration with 17° bevel. Also minimizes the necessary piercing force and diameter of injection channel. Plunger: stainless steel (plunger runs inside the needle). Barrel: borosilicate glass. Precision: < +/- 1% of the volume. Main use: sample dosage for gas chromatography & dosage of small volume samples & for thin layer chromatography.
