Abstract: A system for analyzing a content of at least one element of a contained atmosphere for soldering or tinning with a metal alloy, comprising: at least one sampling line for taking a gas sample from the contained atmosphere; at least one analyzer for analyzing the element; at least one coalescence filter located on the sampling line upstream of the analyzer; wherein the sampling line comprises a portion, located between the contained atmosphere and the coalescence filter, wherein the formation of cold spots which could cause precipitation of solid or pasty compounds in the line portion is prevented; a detector of a blockage in the sampling line between the enclosure and the analyzer.

Abstract: The blood filter cartridge of the invention can be used as a sample cup of an analyzer without sucking bubbles, which comprises a blood filtering material, a holder containing the blood filtering material and having a blood inlet and a filtrate outlet, and a filtrate receiver for receiving filtrate discharged from the filtrate outlet, the filtrate receiver has an upper end having a difference in height or structure for returning the filtrate from the upper end of the filtrate receiver to the filtrate outlet.

Abstract: Embodiments of a multipurpose groundwater sampler device are shown and described, each having a sample tube part of which forms a sample chamber, a top portion having a handle, a novel inlet portion, a sediment trap, novel valve means and a means to join the assembly together. The novel inlet portion is of a size and shape that facilitates rapid filling of the sample chamber and facilitates the collection of layers of fluid which can be measured in the sample chamber to directly represent the in situ thickness of a stratified layer. The novel valve means also facilitates fast filling and incorporates a sediment trap, which keeps sediments from interfering with the valve workings. The multipurpose groundwater sampler device of the present invention is adapted to be provided with an extension tube of the same inside opening as the sample chamber to extend the wide inlet a greater distance from the valve means for collecting thick layers of stratified liquids at their in situ thickness.

Abstract: A sampling device can monitor contaminants in groundwater. The sampling device comprises a semi-permeable membrane for contact with groundwater, in which the semi-permeable membrane is permeable to contaminants and impermeable to groundwater; an inner chamber formed by the semi-permeable membrane for containing the contaminants from the groundwater that diffuse through the semi-permeable membrane; and a sensor device communicating with the inner chamber. The sensor device is in contact with the contaminants contained within the inner chamber for monitoring the contaminants.

Abstract: A sample collection system capable of collecting, storing and dispensing a liquid sample is disclosed. The collection system includes a collector composed of a material which has the unique ability to express constituents of interest at levels which are much more concentrated than their levels in the fluid samples from which they are expressed, where the expressed highly concentrated sample can then be used with modern rapid screening/testing protocols, such as solid phase assays, to test for the constituents of interest. Thus, it is now possible to obtain analytes of interest, such as the HIV protein antibodies, from saliva samples at concentrations that are representative of that found in serum or plasma. The collector is sized and shaped to fit within a recovery container, which, in turn, is sized and shaped to fit within a collection tube.

Abstract: A gas sampling system includes a sample trapping module having a gas pump and a power supply, and a removable magazine that fits within a port of the trapping module. The magazine contains a non-volatile electronic memory, which controls operation of the trapping module, and has a rotating carousel for holding sample tubes. Individual sample tubes are sealed at each end by a cap that has a needle-pierceable septum, and contain a solid collector material to trap chemical and biological contaminants in a gas sample drawn through the sample tube. Individual sample tubes are moved into and out of a sampling location by incremental rotation of the carousel and, while at the sampling location, a pair of hollow bore needles are inserted through the sample tube end caps to allow the drawing of a gas sample through the tube.

Abstract: A component is washed with a fluid to release particulate contaminant. The particulate-containing fluid is passed through a screen (22) having a known number of apertures of identical known size. The change in pressure caused by the accumulation of particles in the screen is measured and compared with the pressure when the screen is clean. From this, a control system (54) determines the number of particles in the fluid having a size greater than the aperture size. This is related to a unit volume by measuring the volume of fluid passing through the screen (22). If the screen blocks before all the fluid is passed through the screen (22), the fluid is pulsed in forward and reverse flow to re-distribute the particles on the screen. The fluid is then back washed from the screen to a second screen (28) having a known number of apertures of identical size. The number of particles per unit volume having a size greater than the size of the apertures of the second screen is then determined.

Abstract: Embodiments of a diffusion sampler device and method of use are shown and described, each having a semi-permeable membrane, a top portion having a handle, a nozzle portion, a plug portion, and means to join the assembly together. The diffusion sampler of the present invention is adapted to be provided with a mesh to protect the membrane against abrasion and, further, to accommodate and principally carry the weight of the diffusion sampler and its contents. A novel valve means is also disclosed for use with the diffusion sampler of the present invention. The valve means will carry the specimen from the membrane into a sampling vial or container with a smooth, nearly laminar flow. The diffusion sampler may be provided with attachment means to accommodate such weights and tethers as may be required during use of the device. A separate fill kit is optionally provided for convenience and accuracy in the sampling process.

Abstract: The present invention relates to an improved gas sampling device comprising a pair of hollow rectangular chambers having diffusion apertures, a heat insulating plate, a reflecting element, a light source and a light detector; wherein the pair of rectangular chambers are arranged one over the other, with the heat insulating element being placed therebetween, the reflecting element having two reflecting surfaces at right angle with respect to each other, one end of the rectangular chambers being secured to the reflecting element with each end thereof being aligned with a reflecting surface, the light source and the light detector being placed at the other end respectively of the rectangular chambers.

Abstract: A gas sampling system includes a sample trapping module having a gas pump and a power supply, and a removable magazine that fits within a port of the trapping module. The magazine contains a non-volatile electronic memory, which controls operation of the trapping module, and has a rotating carousel for holding sample tubes. Individual sample tubes are sealed at each end by a cap that has a needle-pierceable septum, and contain a solid collector material to trap chemical and biological contaminants in a gas sample drawn through the sample tube. Individual sample tubes are moved into and out of a sampling location by incremental rotation of the carousel and, while at the sampling location, a pair of hollow bore needles are inserted through the sample tube end caps to allow the drawing of a gas sample through the tube.