These luer fittings are ideal for a variety of applications, including syringes or small tubing. Manufactured in compliance with ISO 594-1 standards, these fittings are cleaned, inspected and fully traceable. All parts meet tight dimensional tolerances for increased reliability and process purity. All fittings are safe to 100 psi pressure. Silicone-free means the plastics do not contain traces of silicone mold release agent and so will not cause affect to the adhesives dispensed through them. All products ship with part code and batch code.