Abstract: A gas sampling trap includes a first stage and a second stage. The first stage includes a metal salt that reacts with sulfurous species to produce acidic gas. The second stage configured to receive the acidic gas produced in the first stage. An adsorbent substrate in the second stage adsorbs the acidic gas. A method of sampling a gas includes directing gas onto a metal stage within a first stage to produce acidic gas, directing the acidic gas into the second stage, and adsorbing the acidic gas in the second stage with an adsorbent substrate. A method of detecting a concentration of sulfurous species in a gas includes sampling the gas with a sampling trap, desorbing adsorbed acidic gas from an adsorbent substrate of the sampling trap with a solvent, and testing the solvent with ion chromatography.

Abstract: A diagnostic system is configured to perform first and second, different nucleic acid amplification reactions. The system includes a bulk reagent container compartment configured to store first bulk reagent container containing a first bulk reagent for performing sample preparation processes with a first subset and a second subset of a plurality of samples and a second bulk reagent container containing a second bulk reagent for performing the first nucleic acid amplification reaction. The system includes a unit-dose reagent compartment storing a unit-dose reagent pack including unit-dose reagents for performing the second nucleic acid amplification reaction.

Abstract: The invention relates to a device for the temperature monitoring of a cryopreserved biological sample, comprising a sample container (in particular a cryotube) having a holding space for holding a biological sample and comprising at least one chamber, the interior of which is not fluidically connected to the holding space and is filled only partially with an indicator substance, the melting temperature of which lies in a range of ?20° C. to ?140° C. In particular, the chamber can be formed by a container that is detachably or pivotably fastened to the sample container. Alternatively, the chamber is formed by a double-walled slide-on part or the holding space of the sample container is double-walled, wherein an intermediate space between the inner wall and the outer wall is partially filled with the indicator substance.

Abstract: The present disclosure provides a portable seafloor drill rig for a submersible for multi-point core drilling, including a power head, a reduction gear box, an emergency jettison device, a drilling tool, and a temperature and pressure-retaining device. a water supply connector and the power head are arrange on a top plate of the reduction gear box. An output shaft of the power head is connected to an input shaft of the reduction gear box, and an output shaft of the reduction gear box is provided with a central hole, which is in communication with a water inlet hole of the water supply connector. An output shaft of the reduction gear box is connected to the emergency jettison device, and the temperature and pressure-retaining device can perform temperature and pressure-retaining storage of the core drilled by the drilling tool.

Abstract: A sampling device includes a pig-retaining pipe, a plurality of pipes extensions, a plurality of pipe couplings, a winch and support jig, a sample spout, a bottom cap, a pig, and a cable. A storage tank holds product-fuel, water, sludge, and a hard volume. The sampling device is used to collect and sample contents of the storage tank. The sampling device is assembled with the pig attached to a bottom cap coupled to the pig-retaining pipe. The sampling device is inserted into the storage tank to the desired depth. Contents of the storage tank enter into the sampling device through openings in the pig-retaining pipe. The winch is used to pull the cable upwards and draw the pig up through the sampling device. As the pig is pulled upwards, contents exit through the sample spout. The contents are stored in a container that is sent to a laboratory for analysis.

Abstract: A sample collection device for extended reach sampling includes a rod and a cup, which is selectively couplable to a first end of the rod. The rod is configured to be grasped, proximate to a second end, in a hand of a user, positioning the user to position the cup in a source stream to collect a sample.

Abstract: A water sampling device has a rigid body, a top lid, extension members, a horizontal member, a spring, a rod, at least one polymer membrane and a bottom lid. The top lid has a shaft attached to it and the shaft traverses through the horizontal member. The bottom lid is connected to the rod upon which the at least one polymer membrane is attached perpendicularly. The water sampling device undergoes two different stages of lid opening and closing while in operation of collecting water sample to concentrate diversified bacteria from different water depths. The top lid, the shaft and the spring co-operate with the rigid body and the horizontal member such that in a first state, the top lid seals the top end opening while in a second state allows fluid to flow to an inside portion of the rigid body.

Abstract: A sampling vessel which can prevent the operator from being exposed to a powder. A metal sampling vessel (1) for sampling powder has a cylindrical body (2) having a closed first end (2a), an opposite second end (2b) including an opening and a cavity (3), and a connector (6a, 6b) for connecting the cylindrical body (2) to a hanging line. The cylindrical body (2) satisfies a relationship M1>M2, wherein M1 represents the mass between the first end (2a) and a bottom (3c) of the cavity and M2 represents the mass between the opening (5) at the second end and the bottom (3c) of the cavity.

Abstract: A replaceable motor module for a groundwater sampling device including an inner housing defined by a cylindrical shape and having a first alignment pin. A DC-operated electric motor is positionable within the inner housing, and includes a first set of electrical input terminals, an output shaft capable of downwardly extending through a sealed hole in the inner housing, and a first alignment groove for mating with the first alignment pin of the inner housing. An inner housing cap includes a second set of electrical input terminals and electrical output terminals, and is pressingly engageable with the inner housing.

Abstract: A device for collecting samples of the sea floor, including a collection apparatus, a diving apparatus and a control apparatus.

Abstract: A system and method for preparing samples for analyte testing. The sample preparation system can include a freestanding receptacle. The method can include providing a liquid composition comprising a source and a diluent, and positioning the liquid composition in a reservoir defined by the freestanding receptacle. The method can further include filtering the liquid composition to form a filtrate comprising an analyte of interest, removing at least a portion of the filtrate from the sample preparation system to form a sample, and analyzing the sample for the analyte of interest.

Abstract: A sampling container having a bottle connected to a cap with the cap in communication with a one-way valve for the transport of fluid into the bottle; and the one-way valve configured to receive fluids there through into the opening of the bottle. Further optional embodiments also include a vacuum adapter for attaching the cap to a vacuum pump.

Abstract: The invention relates to a sampler for sampling sediment suspended in fluid, the sampler including a container and a closure. The container includes an opening through which fluid can enter and be contained therein. The closure is associated with the opening of the container and includes a moveable part which on tipping or inversion of the sampler moves between an open and a closed position. In use in the open position the sample can enter the container through the opening and be contained therein, and in the closed position fluid in the container is substantially prevented from leaving the container. The invention also relates to variant forms of the invention and a method of use.

Abstract: The present invention relates to methods and systems for detecting leaks in a head space sampling device. One exemplary method for detecting leaks in a head space sampling device includes establishing fluid communication between a head space and a pressurization gas conduit. Gas pressure and flow rate are monitored within the pressurization gas conduit during pressurization of the head space. Changes in monitored gas pressure and flow rate are used to evaluate whether a leak exists within the head space sampling device or the vial containing the head space. One exemplary head space sampling device includes a conduit for receiving a pressurization gas, flow and pressure sensors for measuring gas flow and pressure within the conduit, a ventilation valve, a pressure valve for controlling gas flow through the conduit, and a controller for processing and controlling pressure and flow through the conduit.

Abstract: A water sampling device includes a mounting frame including two end plates disposed parallel to one another on a shaft. A multiple magazine is configured as a rotatable drum magazine that is horizontally disposed between the two end plates of the mounting frame. The multiple magazine includes a plurality of sample containers. Each of the sample containers has a first face and a second face. The first face includes a first axially arranged conical opening and a first positive locking cone forming an inlet valve. The second face includes a. second axially arranged conical opening and a second positive locking cone forming an outlet valve. Each of the positive locking ,cones is configured to shift axially relative to the respective conical opening so as to operate the respective inlet or outlet valve and so as to form a symmetrical annular gap in an open position of the respective valve.

Abstract: The present invention describes a tubular scoop that may be utilized with various assemblies for sampling fluid in a pipeline. The scoop includes a bend with a bend radius that is from two to four times the diameter of the scoop. The scoop defines a scoop face that is parallel to an axis of the tubular of the scoop. The scoop is mounted with a threaded connection that seals around the tubular. An additional seal comprises a compression nut that allows orientation of the scoop within the pipeline whereupon the scoop orientation is fixed by tightening the compression nut.

Abstract: It comprises a handle (1), an air flow amplifier (8) leading to a retention means (2) such as a cyclone via a passage (3), and a compressed air inlet device (7, 9) in the amplifier (8) that creates a strong suction of outside air, through the nozzle (4) capable of capturing even fine particles of low content up to a measurable quantity. Being completely devoid of electricity, this device is useful in hazardous atmospheres, in particular for detecting the presence of explosives after analysis of the particles collected by this device. It makes it possible to sample particles in extreme conditions of high or low temperatures.

Abstract: Embodiments of the invention are directed to methods of use and a (trainable sight glass assembly for use with a sump pump having a pump housing and being adapted to view the condition of oil disposed, within the pump housing. In some embodiments, the drainable sight glass assembly can comprise a sight glass housing having an upper disk layer with a first diameter and a first threaded receptacle formed therein disposed on a top side of the sight glass housing, a lower disk portion with a second diameter and a second threaded receptacle formed therein and disposed on a bottom side of the sight glass housing, and a substantially transparent wall portion connecting upper disk layer to the lower disk portion so that the sight glass has a hollow, substantially frustoconically shaped interior when oil is not in the sight glass housing.

Abstract: The invention provides a liquid storage installation which includes a tank (70) containing a liquid and a device (10) for measuring and sampling the liquid. The device (10) includes an elongate hollow body (12) having a closed bottom and a plurality of spaced apart sampling ports (20, 22, 24) at spaced apart positions. The device (10) further includes a sleeve (14) which extends around the sampling port and in which corresponding sampling ports (26, 28, 30) are provided at spaced apart positions. The body (12) and sleeve (14) are displaceable relative to one another between an open position in which the sampling ports are in register permitting liquid flow between the tank and the interior of the body and a closed position in which the ports are out of register and flow between the tank and the interior of the body (12) is prohibited.

Abstract: A sample can be collected from an enclosed container by opening a sample collection valve and drawing the sample from the enclosed container. After delivery of the sample out of a fluid flow path, a sanitizing fluid can be directed along the fluid flow path to sanitize the fluid flow path.

Abstract: A sampling device allows samples to be taken from a fluid that is pressurized and/or contains volatile components. The sampling device has a sampling housing (121, 521), an inlet (10, 110, 510), an outlet (11, 111, 511), a measuring cell (17, 317, 517) and a valve unit (118, 534). The valve unit has a valve which, in a first position, connects the inlet to the outlet by way of the measuring cell. In a second position, the valve connects the inlet directly to the outlet, while also disconnecting the measuring cell from both the inlet and the outlet. The valve unit also has at least one adjustable flow restrictor, through which the flow of the fluid through the sampling device is regulated.

Abstract: A collection container for biological samples is described. In one embodiment, the collection container includes a receptacle and a lid with a sampling port. The sampling port is coupled to an aspiration tube and allows access to the contents of the receptacle. A needle-free fitting allows a mating device to be coupled to the sampling port. A valve automatically closes to prevent the sample from escaping through the sampling port when a mating device is not coupled.

Abstract: A method of taking a fluid samples from a processing line is provided that includes: placing an input conduit in fluid communication with the processing line; operatively coupling the input conduit to a peristaltic pump and a valve block; operatively coupling the valve block to a valve actuator so that the valves are movable among an off position, a flush position, and a sample position; controlling the valve actuator to move the valves to the flush position and turning on the peristaltic pump so that fluid from the processing line is pumped to a waste bag; and controlling the valve actuator to move a particular valve to the sample position and to move any valve upstream of the particular valve to the flush position while the peristaltic pump remains on so that fluid from the processing line is pumped to the sample bag associated with the particular valve.

Abstract: A sample collection device is provided. The collection device includes an input conduit, a plurality of automated sample collection bags, a waste collection bag, and a valve block. The input conduit is connectable to a fluid processing line. The automated sample collection bags each have a sample volume and the waste collection bag has a waste volume. The valve block a plurality of three-way valves and an output, where the plurality of three-way valves correspond in number to the plurality of automated sample collection bags, each of the three-way valves placing the input conduit in fluid communication with a different one of the plurality of sample collection bags. The output is in fluid communication with the waste collection bag. The collection device has a ratio of the waste volume to the sample volume of not more than 15:1.

Abstract: A water sampling assembly which utilizes a clear container. The clear container is connected to a generally circular lip portion via a shoulder portion. The lip portion has an open distal edge and being threaded on an exterior surface. The diameter of the main body is than the diameter of the lip portion. Contained with the main body is a spherical stopper mechanism which rises as water enters the main body until such time that the spherical stopper seals the shoulder/lip portion so that further water is discouraged from entering the main body of the clear container. Ideally a cap mechanism is provided that is securable to the lip portion via threads so that the entire assembly, with the collected water sample, is easily transported and stored.

Abstract: The present invention relates to an adsorbed gas content measuring instrument and its testing method. The instrument comprises sealed cylinders, gas collecting graduated canisters and a test box, wherein the sealed cylinders are provided with valves, the gas collecting graduated canisters are equipped with drain hole adjustment valves and vent hole switching valves fit for the valve ports, and there is a heating element and a temperature controller in the test box. The method is mainly as follows: put gas-contained samples and saturated brine into the sealed cylinder, seal the cylinder, feed water in the test box and heat the box, place the sealed cylinder into the water bath of the test box, introduce saturated brine into the gas collecting graduated canister, connect the canister and cylinder, open the drain hole of the gas collecting graduated canister, record the liquid level of the graduated canister and cut off the connection after the test.

Abstract: A canister for measuring the natural gas content of rock cores which (1) has an inner core-containment bag made of non-permeable plastic which can be flash evacuated, collapsing around the core and thus minimizing the amount of air present and improving the quality of the gas analyses and (2) which prevents the released gas from reacting with the outer canister. A procedure for using gas-sampling bags to periodically collect the gas released from the core so that (1) the volume of released gas can be measured at a later date using more convenient and precise laboratory methods, (2) the gas can be readily transported and stored, and (3) the gas can be easily submitted for analysis.

Abstract: Device for taking samples from the bottom boundary layer of a water body, consisting of compact bottom sediments, overlying water-saturated mud layer, and near-bottom water layer directly connected with the latter, belongs among oceanographic devices. Disturbance of the probes' structure is avoided by the construction of the device with several shorter tubes with their inlet holes being located at different heights, instead of one long sampling tube. There are distinctive tubes for taking samples from layers at different heights from the bottom. The sampling tube divided into sections is furnished with isolating valves that divide the interior of the tube into layers isolated from each other. Soft and regulated drop of the device is achieved using the inflatable contact belt. Using an upper inflatable balloon avoids the vertical stability of the device and raising it to the surface without cabling.

Abstract: A water sampling system, device and method of sampling are provided. Water sampling system includes triggering mechanism, at least one water sampling device and pumping mechanism. Water sampling device is configured to cooperate with triggering mechanism and includes removable sampling container and pinch mechanism. Removable sampling container is disposed in water sampling device and includes inlet, inlet tube and sampling bag attached to inlet tube. Pinch mechanism is located adjacent to and surrounding inlet tube and proximate to sampling bag. Pinch mechanism, when closed, prevents water from entering inlet tube and sampling bag. Pinch mechanism, when open, allows water from inlet into inlet tube and sampling bag. Pumping mechanism creates a flow of water to cause sampling bag to collect water when pinch mechanism is in an open position.

Abstract: A sample collection apparatus for use with a collection trap is provided. The apparatus includes a handle and a sample collection assembly coupled to the handle. The sample collection assembly includes a cradle and a cover. The cradle is coupled to the handle at a first end portion of the cradle. The cradle includes an opening defined therethrough by vertical side walls extending between an upper surface of the cradle and a lower surface of the cradle. The cover includes a projection member and a block. The cover is coupled to a second end portion of the cradle. The projection member includes the block configured to be at least partially inserted through the cradle opening.

Abstract: A sample collection vial and process of using a vial is provided. The sample collection vial has an opening secured by a dissolvable plug. When dissolved, liquids may enter into the interior of the collection vial passing along one or more edges of a dissolvable blocking member. As the blocking member is dissolved, a spring actuated closure is directed towards the opening of the vial which, when engaged, secures the vial contents against loss or contamination.

Abstract: Sampling arrangement adapted for extracting a fluid sample from a fluid flowing in a flow path (13). The arrangement comprises a sampling valve (110), such as a ball valve, comprising an outer body and an inner body rotationally supported within it. The inner body is rotationally supported about a rotation axis and comprises a cavity (119) with a first opening (119b) adapted to be rotated into and out of fluid connection with the flowing fluid, and a second opening (119c) which faces in a direction parallel to the rotation axis of the inner rotating body.

Abstract: There is provided an automatic sequential sampler for roof-top runoff of rainwater, which comprises: a sensing part, a controlling part and a sampling part, and more particularly, which takes samples of rainwater, at regular intervals, by sensing whether it rains and controlling the rotation and stop of a sample bottle shelf in the sampling part, using a timer and a counter.

Abstract: A water sampling device comprises a cylinder, a first disk positioned at a top of the cylinder, a plurality of sampling tubes attached to the first disk, and a second disk positioned on the first disk, wherein the second disk includes an aperture through which water to be sampled flows into one of the plurality of sampling tubes when the aperture is lined up with an opening of the one sampling tube.

Abstract: A system and method for preparing samples for analyte testing. The sample preparation system can include a freestanding receptacle. The method can include providing a liquid composition comprising a source and a diluent, and positioning the liquid composition in a reservoir defined by the freestanding receptacle. The method can further include filtering the liquid composition to form a filtrate comprising an analyte of interest, removing at least a portion of the filtrate from the sample preparation system to form a sample, and analyzing the sample for the analyte of interest.

Abstract: A method and apparatus for the collection, transportation and analysis of gas samples which may be required in various scientific, environmental and natural resource contexts is provided. The apparatus comprises a sampling container assembly for sampling a fluid. The container assembly comprises a body defining a sampling chamber having a first end and a second end, a first valve assembly fluidly coupled with the first end and a reactant material positioned within the sampling chamber for reacting with the fluid. After collection of the sample in the sampling container assembly, hazardous fluids are converted to non-hazardous materials that can be transported without additional hazardous material restraints. Further, the flow through design of the sampling container assembly allows for the collection of gases such as H2S at low concentrations by flowing the gas over the reactant materials for longer periods of time.

Abstract: A closure device including a fill chamber housing, which forms an edge for a hollow cross-section of a fill chamber, and at least one shut-off valve having a through-passage, the valve being displaceable between an open position and a closed position by a guide gap transversely to a filler chamber longitudinal direction. In the open position, the shut-off valve with the through-passage thereof forms a passage of a fill chamber cross-section, and in the closed position the shut-off valve closes the fill chamber cross-section. A cleaning chamber is formed, the chamber height of which is greater than the gap height of the guide gap, and the position of the chamber is associated with the shut-off valve such that the edge of the through-passage is located in the cleaning chamber in the closed position.

Abstract: A sample collecting device including an outer casing and a valve assembly disposed at least partially within the outer casing and configured to obtain a sample of a sample material. A method of sampling sediment including entering a sample collecting device into a fluid storage container, contacting a surface of a sample material with the sample collecting device, obtaining a sample of the sample material, and removing the sample collecting device from the fluid storage container.

Abstract: The present invention relates to methods and systems for detecting leaks in a head space sampling device. One exemplary method for detecting leaks in a head space sampling device includes establishing fluid communication between a head space and a pressurization gas conduit. Gas pressure and flow rate are monitored within the pressurization gas conduit during pressurization of the head space. Changes in monitored gas pressure and flow rate are used to evaluate whether a leak exists within the head space sampling device or the vial containing the head space. One exemplary head space sampling device includes a conduit for receiving a pressurization gas, flow and pressure sensors for measuring gas flow and pressure within the conduit, a ventilation valve, a pressure valve for controlling gas flow through the conduit, and a controller for processing and controlling pressure and flow through the conduit.

Abstract: A water sampling device includes a mounting frame including two end plates disposed parallel to one another on a shaft. A multiple magazine is configured as a rotatable drum magazine that is horizontally disposed between the two end plates of the mounting frame. The multiple magazine includes a plurality of sample containers. Each of the sample containers has a first face and a second face. The first face includes a first axially arranged conical opening and a first positive locking cone forming an inlet valve. The second face includes a. second axially arranged conical opening and a second positive locking cone forming an outlet valve. Each of the positive locking ,cones is configured to shift axially relative to the respective conical opening so as to operate the respective inlet or outlet valve and so as to form a symmetrical annular gap in an open position of the respective valve.

Abstract: Portable devices and related methods for collecting and storing atmospheric samples for subsequent chemical analysis are provided. A sample cartridge according to one implementation includes self-sealing inlet and outlet ports configured to close automatically when not in use, and a sample retention portion between the inlet and outlet ports that is adapted to trap an atmospheric sample. The sample cartridge may also include a memory device for recording data regarding the sample. Another embodiment provides a portable sampler configured to removably secure a self-sealing sample cartridge. A portable sampling device may also be used with an analytical instrument. The analytical instrument may analyze the sample and read the data recorded on the sample cartridge's memory.

Abstract: A closed loop system for obtaining a sample of a fluid from a source of fluid is disclosed, the system including a collection vessel having a fluid chamber disposed therein. A valve assembly is disposed within the collection vessel and adapted to selectively open and close a fluid communication path between the fluid chamber and an associated fluid receptacle. An inlet provides a fluid communication path between the source of fluid and the fluid chamber, and an outlet provides a fluid communication path between the fluid chamber and a fluid recovery system.

Abstract: Sample vials and methods of processing the sample vials are provided. The sample vial comprises a vial container, a sample collection chamber within the vial container, a vial cap configured to be mated with the vial container to enclose the collection chamber, an aliquot chamber, which may be carried by the vial cap or the vial container, and a valve mechanism for selectively sealing and unsealing the aliquot chamber from the collection chamber. The method may comprise flowing an aliquot of the sample from the collection chamber while the sample within the collection chamber is isolated from an environment exterior to the vial, sealing the aliquot chamber from the collection chamber to isolate the aliquot sample from the remaining sample portion, and transferring at least some of the remaining sample portion from the collection chamber to a microscope slide while the aliquot chamber is sealed from the collection chamber.

Abstract: Instant Reading Oil Dipstick Improvements is a near universal design with most assembly done by the manufacturer. The customers can easily adapt such to match their existing dipstick geometry by pushing the adjustable parts to the correct location, where they will remain. The air valve is within a single, machined brass cone that adapts to the metal tube and seals in the engine vacuum. A new tubular plastic air seal around the wire handle increases reliability. And a cone shaped rubber squeegee will automatically remove oil from the outside of the tubing as the dipstick is withdrawn from the crankcase.

Abstract: A sampling port includes a housing and a valve assembly. The housing includes an internal passage through which fluids flow and defines a port in fluid communication with the internal passage. The valve assembly is mountable adjacent the port of the housing and includes a bezel having a channel extending therethrough and a bladder mounted adjacent the bezel. The bladder includes a bladder base and a bladder stem depending from the bladder base which is at least partially received within the channel of the bezel. The bladder stem is movable within the channel of the bezel between a first position substantially preventing fluid flow through the valve assembly and a second position in which a fluid path is established through the valve assembly and in fluid communication with the internal passage of the housing.

Abstract: A sampling apparatus for taking a liquid sample includes an inlet, a sample housing defining a sampling chamber for the liquid sample, and a sampling tube through which, in use, a flow of liquid to be sampled flows from the inlet into the sampling chamber. The sampling tube extends a predetermined distance within the sampling chamber, and defines a fluid pathway between the inlet and the sampling chamber.

Abstract: A sampling device allows samples to be taken from a fluid that is pressurized and/or contains volatile components. The sampling device has a sampling housing (121, 521), an inlet (10, 110, 510), an outlet (11, 111, 511), a measuring cell (17, 317, 517) and a valve unit (118, 534). The valve unit has a valve which, in a first position, connects the inlet to the outlet by way of the measuring cell. In a second position, the valve connects the inlet directly to the outlet, while also disconnecting the measuring cell from both the inlet and the outlet. The valve unit also has at least one adjustable flow restrictor, through which the flow of the fluid through the sampling device is regulated.

Abstract: A method is provided which is capable of efficiently taking most of a precious sample into an extraction vessel without wasting when the sample is extracted from a collection section of a sampling rod. The method includes the steps of collecting a sample using a sampling rod formed of a rod body and a collection section attached to the rod body, inserting the sampling rod into the extraction vessel, placing the rod body in a gap formed in a grappling hook section which is disposed in an insertion path of the sampling rod, the gap having a width smaller than a diameter of the collection section and being capable of receiving the rod body, withdrawing the rod body with the rod body being placed in the gap and detaching the collection section from the rod body by hooking the collection section to the grappling hook section.

Abstract: Fluid injection port. An elastomeric injection nipple is supported within a compression fitting and the injection nipple includes a slit. A first via is provided that connects the slit in the nipple to a flow channel leading into a fluid reservoir. A venting channel is provided in fluid communication with the fluid reservoir and also in fluid communication with a second via. When a pipette is inserted into the slit in the injection nipple, the nipple deforms allowing the second via to be in fluid communication with space on either side of the pipette tip whereby air can be discharged.

Abstract: A collection container for biological samples is described. In one embodiment, the collection container includes a receptacle and a lid with a sampling port. The sampling port is coupled to an aspiration tube and allows access to the contents of the receptacle. A needle-free fitting allows a mating device to be coupled to the sampling port. A valve automatically closes to prevent the sample from escaping through the sampling port when a mating device is not coupled.