Norm-Ject® All Plastic Syringes are latex free, contain no rubber, silicone oil, styrene, BPA or DEHP and are certified DNA free. These syringes are the choice for any situation needing an inert, non-reactive syringe. Because of their purity, they are indicated for chromatography and many laboratory procedures. Manufactured only from laboratory grade polypropylene and polyethylene, these unique plastic syringes are more chemically resistant than rubber-tipped syringes and have a positive safety stop to help prevent accidental spills.