A sensor for use in a canister for fluid collection, the canister having a canister top and defining a fluid collection chamber. The sensor includes a first electrode and a second electrode. The first electrode includes a first portion and a second portion, wherein the first portion of the first electrode is supported by the canister top, and the second portion of the first electrode is configured to extend into the fluid collection chamber. The second electrode includes a first portion and a second portion, wherein the first portion of the second electrode is supported by the canister top, and the second portion of the second electrode is configured to extend into the fluid collection chamber. The sensor also includes an electric circuit configured to detect an electrical property associated with the first and second electrodes.

A sensor for use in a canister for fluid collection, the canister having a canister top and defining a fluid collection chamber. The sensor includes a first electrode and a second electrode. The first electrode includes a first portion and a second portion, wherein the first portion of the first electrode is supported by the canister top, and the second portion of the first electrode is configured to extend into the fluid collection chamber. The second electrode includes a first portion and a second portion, wherein the first portion of the second electrode is supported by the canister top, and the second portion of the second electrode is configured to extend into the fluid collection chamber. The sensor also includes an electric circuit configured to detect an electrical property associated with the first and second electrodes.

A self-filling graduated cylinder system for efficiently filling a graduated cylinder with a chemical solution. The self-filling graduated cylinder system generally includes a graduated cylinder having an interior, an upper end, an upper opening in the upper end a lower end opposite of the upper end, and a check valve attached to the graduated cylinder near the lower end of the graduated cylinder. The check valve is adapted to allow a liquid chemical to flow upwardly through the check valve into the graduated cylinder and to prevent the liquid chemical within the interior of the graduated cylinder from flowing downwardly through the check valve.

A self-filling graduated cylinder system for efficiently filling a graduated cylinder with a chemical solution. The self-filling graduated cylinder system generally includes a graduated cylinder having an interior, an upper end, an upper opening in the upper end a lower end opposite of the upper end, and a check valve attached to the graduated cylinder near the lower end of the graduated cylinder. The check valve is adapted to allow a liquid chemical to flow upwardly through the check valve into the graduated cylinder and to prevent the liquid chemical within the interior of the graduated cylinder from flowing downwardly through the check valve.

An apparatus and method are provided to evaluate an amount of a biological sample in a specimen container. A fixture has a bottom surface configured to support a specimen container. A reference indicator is disposed at a predetermined height relative to the bottom surface. The reference indicator is configured to facilitate a visual comparison of the reference indicator with a height of a volume of a biological sample in the specimen container.

An apparatus and method are provided to evaluate an amount of a biological sample in a specimen container. A fixture has a bottom surface configured to support a specimen container. A reference indicator is disposed at a predetermined height relative to the bottom surface. The reference indicator is configured to facilitate a visual comparison of the reference indicator with a height of a volume of a biological sample in the specimen container.

A closed loop system for the calibration of a multiphase meter, such as a multiphase flow meter or water cut meter, and a method of employing the system in calibration of multiphase meters in crude oil production processes. The system includes an oil and water separation vessel, oil and water flow meters, valves, pumps, and a single phase calibration unit. The system employs a two-step calibration process. First internal single phase oil and water meters are calibrated using the single phase calibration unit; subsequently multiphase meter calibration is achieved using the two precalibrated single phase flow meters.

The present disclosure discloses a retractable assembly for immersion, flow and mounted measuring systems in analytical process technology for receiving a sensor which is designed to measure at least one measurement variable of a medium in a container, comprising: a substantially hollow-cylindrical housing comprising a housing wall, a service chamber which is formed in the interior in a region of the housing, and a dip tube which is axially movable in the housing between a service position moved out of the medium and a process position moved into the medium, the dip tube being positioned in the service chamber in the service position, the sensor being receivable in the dip tube, wherein at least one optical window is arranged in the housing wall in the region of the service chamber.

A canister for collection and storage of fluids under vacuum, comprising a spherical container having a first hemispherical component and a second hemispherical component. The first and second components are connected at a canister beltline consisting of multiple flanges, to provide an air-tight and liquid tight seal.

A canister for collection and storage of fluids under vacuum, comprising a spherical container having a first hemispherical component and a second hemispherical component. The first and second components are connected at a canister beltline consisting of multiple flanges, to provide an air-tight and liquid tight seal.