Urine Sample Container (50ml). Sample Container. Screw capped container that is moisture and air tight. The container can only be opened by breaking the guaranteed seal. Fill in the self adhesive label supplied and stick on container. A 100% leak-proof and airtight container that ensures the integrity of your sample. The container features a secure screw cap and a guaranteed seal that can only be opened when needed. Use the provided self-adhesive label to easily and accurately label your sample container.