These 0.5, 1.5 and 2.0 ml vials are molded from high purity, low-metal content polypropylene copolymer (PPCO) resin. The 0.5 and 2.0 ml vials are skirted, with conical interiors to allow maximum recovery of contents. The 1.5 ml vial has a conical design and fits easily in most biotechnology and diagnostic equipment. Vials and closures are pressure-tested together at 7.5 psig (51.7 kPa) for air shipment. Vials and closures meet requirements of CFR21 177.1520 for food and beverage use and the USP Class VI standard. Non-pyrogenic and can be centrifuged at 13,000 x g. Vials are available as either sterile and non-sterile.