Patent ID: 8273312

Claim:
A liquid testing assembly for testing a liquid, the assembly comprising: a test vessel having a free end and a closed end; a stopper having first and second ends and adapted to fit into a free end of said test vessel such that said first end faces into the interior of said test vessel, so as to substantially hermetically seal the interior of said test vessel from the ambient; a support coated with at least one identifying material for identifying at least one constituent of the liquid and fixed to at least one of said stopper and said test vessel, said support extending into the interior of said test vessel by a predetermined distance when said stopper is positioned in said free end of said vessel; and at least one liquid trap positioned proximate to the closed end of said test vessel and distal from said free end and positioned beneath said support, said liquid trap being configured, sized and operative to prevent the liquid after wetting the at least one identifying material on said support from flowing in the direction of said stopper rewetting the at least one identifying material, wherein said liquid testing assembly when assembled is sterilized and pre-evacuated to a predetermined low vacuum of between about 2 to about 5 inches of Hg sufficient to draw a small predetermined volume of the liquid to be sampled into said test vessel from a liquid collection container, the small predetermined volume being about 0.7 ml to about 1.5 ml, said predetermined volume being of such an amount sufficient to wet said at least one identifying material and thereafter to be substantially entirely trapped by said at least one trap, thereby ensuring identification of at least one predetermined constituent when present in the liquid and allowing visual reading of the identifying material while said support remains in said vessel.