The invention provides a specimen collection and sampling device, particularly useful for urine samples, for collecting a liquid sample and segregating an aliquot of the sample away from contact with the remaining portion of the sample. This segregation is accomplished as the lid is closed on the container. In one embodiment, the aliquot sample is transferred to an evacuated tube held within the container. In another embodiment, the aliquot is held within a sample chamber that is built into the ...

A single-filament specimen preparation fixture for preparing a multiplicity of tensile testing specimens from the same filament. The fixture can be used manually or it can be adapted for use as one element in an automatic testing system.

A composite protective laboratory specimen bag (A) and method is illustrated which includes folded tubing (D) having a releasable lock (26) for forming a first fluid-tight compartment (B) for containing a laboratory specimen container. J-folded sheeting (E) with a reverse flip (46) forms a second compartment (C) for containing associated paper work. The tubing and sheeting are heat sealed together across a web (32) of the tubing to form a closed top composite bag with side mouth openings (24,48)...

A specimen holder and rotary mount in which a semiconductor chip can be arately mounted and presented to a test device for checking the circuitry of the semiconductor chip as well as subjecting the chip to various thermal conditions.

Improvements in test specimen grip apparatus for tensile stress testing machines includes replaceable grip inserts that are able to accommodate wider than usual test specimens, particularly textile test specimens. The specimen grip means or grip inserts are threadedly retained on and may be substantially wider than their supporting jaw members. The grip housing, moreover, is provided with apertures for access to the threaded retainers for ease of grip insert removal and replacement. In addition,...

A test specimen is provided, that is constructed of dual materials, which are preferably metallic materials and which are more preferably an austenitic iron alloy and a ferritic iron alloy. The specimen is generally constructed as a rectangular configuration, with two principal legs, connected together by substantially rigid connections at their ends, with the legs being of the different materials, such that, when the specimen is subjected to heat, one leg will expand linearly an amount greater ...

A specimen distributing system for the remote-controlled extraction of sample specimens is provided wherein manipulator units supporting pipettes are movable horizontally and vertically and specific quantities of sample fluids may be transferred from primary containers to secondary containers. The distributing system comprises a table unit which is rotatable around a central vertical axis, with secondary containers forming container assemblies arranged around the circumference of the table unit ...

A secure specimen collection vessel is provided, which in a preferred embodiment comprises a four-chamber base cup, 1, a twist-lock antirotation cap, 2, and a resilient sealing plug, 3. Clip-off drain tabs, 6, and vent tabs, 7, are located at the bottom end of the base cup, allowing each chamber to be drained individually for repeat analysis of a urine sample. The locking, antirotation cap, 2, prevents the contents of the vessel from being accidentally contaminated by the external environment, a...

An x-ray microanalyzer is a useful instrument which obtains an image representing the distribution of the constituent elements of a specimen, by detecting characteristic x-rays produced from a microscopic region on the specimen. The present invention is intended to enhance the efficiency of such an analysis of a specimen using an x-ray microanalyzer. A region of interest is designated upon the aforementioned image. The average weight concentration of the constituent elements in this region or in...

A pneumatically operated device for collecting biological specimens under water in a receiving chamber and employing a pneumatically operated plunger for creating suction at an intake to the receiving chamber is provided with a nozzle having a movable end remote from the intake. A pneumatic nozzle activator is operated in tandem with the plunger to extend the movable end of the nozzle away from the intake and toward a live biological specimen to be trapped. Concurrent retraction of the plunger a...