portion 80 through use of a tab 95 extending from one end of the inner portion 84 and appropriate media may be placed in the compartments the inner portion 84 of the receptacle may then be inserted into the outer portion until the flange 86 engages the side wall 82 of the outer portion 80 a fluid impervious sheet 102 such as foil may then be secured to an outwardly directed flange 104 extending peripherally around the side wall 82 of the outer portion 80 such that the sheet 102 seals the inner portion 84 inside the outer portion 80 of the receptacle and prevents moisture loss from the receptacle cavity 32 and thus possible breaking up of the media in the receptacle cavity the device may be used to collect a liquid sample as follows the handle 58 of the valve member 54 is moved to its first position as shown in fig5 and 5a such that the handle 58 is directed along the third stem 46 and the cap 33 is removed from the needle the needle 22 may then be used to penetrate the source of liquid sample if the device is utilized to obtain a urine sample from a catheter c as shown in fig1 by penetrating the wall of the catheter with the needle the catheter is first blocked below the site of the needle puncture to collect a sufficient amount of urine in the catheter where the sample is to be taken once the needle has penetrated the catheter wall the plunger 74 of.