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We are developing a retractable, disposable single use syringe. Our material of choice for the barrel is a Polypropylene Random Copolymer, and for the plunger a Polypropylene Homopolymer. Our estimated monthly and annual volumes are: a) Syringe Barrel: 30200 kg/month , 362400kg/year b) Syringe Plunger: 16080 kg/month, 192960kg/year We require the polypropylene to be compliant to ISO 10993 in terms of cytotoxicity, sensitization, irritation and pyrogenicity. Are you able to help us with our query? Looking forward to hearing from you soon.