Abstract: The present invention provides a method of collecting a liquid sample using a leak proof, air tight plastic container device. The method comprises placing the sample in the container device, the device comprised of a container, a lid, a lid groove containing a gasket therein which covers and tightens over the rim of the container, a lid flange, and a thin hook in the container containing a second gasket compressed by the lid flange when the lid is closed over the container; and sealing the sample in the container device by engaging the internal screw threads of the lid with the external screw threads of the container and rotating the lid until resistance to rotation is encountered. The method further comprises transporting the sample to a site for analysis, whereby no leakage of the liquid sample and no air seepage into or out of the container occur during transport.

Abstract: The present invention provides an improved, leak proof, air tight, cost-effective, plastic liquid specimen container device and methods of use, comprised of a container, a lid, a lid groove containing a gasket therein that is configured to cover and tighten over the rim of the container, a lid flange, and a thin hook in the container containing a second gasket that is compressed by the lid flange when the lid is closed over the container. The improved container device of the present invention thus provides two, independent, internal seals that protect the liquid contents therein for extended periods of time, even if the plastic undergoes deformation, during transport, especially air transport, and under varying temperature and atmospheric pressure.

Abstract: The present invention provides an improved, leak proof, air tight, cost-effective, plastic liquid specimen container device and methods of use, comprised of a container, a lid, a lid groove containing a gasket therein that is configured to cover and tighten over the rim of the container, a lid flange, and a thin hook in the container containing a second gasket that is compressed by the lid flange when the lid is closed over the container. The improved container device of the present invention thus provides two, independent, internal seals that protect the liquid contents therein for extended periods of time, even if the plastic undergoes deformation, during transport, especially air transport, and under varying temperature and atmospheric pressure.