An electrochemical cell for testing a battery, wherein the electrochemical cell includes two electrodes, preferentially made of vitreous carbon, intended to be in electrical contact with the battery to be tested.

A gas sample introduction device includes a sample container connection flow path, a sample loop and a first flow path switching valve, having a first state in which the pressurizing gas is supplied to the sample container connection flow path via the sample loop and a second state in which the pressurizing gas is supplied to the sample container connection flow path without via the sample loop. A leak check method includes a first determination step of determining whether or not there is a gas leak by setting the first flow path switching valve to a first state and a second determination step of identifying a location of a gas leak by performing a second determination of whether or not there is a gas leak by setting the first flow path switching valve to a second state, when there is a gas leak in the first determination step.

A gas sample introduction device includes a sample container connection flow path, a sample loop and a first flow path switching valve, having a first state in which the pressurizing gas is supplied to the sample container connection flow path via the sample loop and a second state in which the pressurizing gas is supplied to the sample container connection flow path without via the sample loop. A leak check method includes a first determination step of determining whether or not there is a gas leak by setting the first flow path switching valve to a first state and a second determination step of identifying a location of a gas leak by performing a second determination of whether or not there is a gas leak by setting the first flow path switching valve to a second state, when there is a gas leak in the first determination step.

A gas collecting apparatus for collecting gas generated in a secondary battery comprising an electrode assembly and a flexible pouch case containing the electrode assembly therein, the gas-collecting apparatus comprising an insert plate part including a through-hole and a pressing jig part having a gas moving path, and the gas-collecting apparatus capable of easily collecting the gas regardless of the standard size and shape of the secondary battery.

A gas collecting apparatus for collecting gas generated in a secondary battery comprising an electrode assembly and a flexible pouch case containing the electrode assembly therein, the gas-collecting apparatus comprising an insert plate part including a through-hole and a pressing jig part having a gas moving path, and the gas-collecting apparatus capable of easily collecting the gas regardless of the standard size and shape of the secondary battery.

A test device for determining the particle load of pressurized hydrogen includes a housing (2), with an inlet (4) and an outlet (8) for the inflow or outflow of hydrogen, respectively. A sampling chamber (52) has a filter holder (44) for a test filter (58). A sample amount of hydrogen can flow through the test filter during a test procedure. After the test procedure has been completed, the test filter can be removed from the sampling chamber (52) for evaluating the deposition of particles. A venting device (64, 70) for reducing the pressure in the sampling chamber (52) is arranged inside the housing (2) and discharges any remaining hydrogen, at least partially, in the direction of the inlet (4) of the test device after the hydrogen has stopped flowing from the testing device.

An air sampling actuator and associated method are disclosed. The air sampling actuator may include a housing configured to mount on a canister, a motor configured to be accommodated in the housing, and an adaptor. The motor may generate a mechanical action, in response to a control signal received by the motor. The adaptor may be coupled to the motor, and configured to interface with a valve-controlling knob of the canister. In a first configuration of the air sampling actuator, the adaptor may be uncoupled from the valve-controlling knob of the canister, and the hook portion may be unengaged with the canister. In a second configuration of the air sampling actuator, the adaptor may be coupled with the valve-controlling knob of the canister, and the hook portion may be engaged with the canister.

Disclosed is a method including sampling the air of a pressurized zone of an aircraft by identifying a pre-existing pressurized air flow in a pressurized zone of an aircraft without substantially blocking the pre-existing pressurized air flow and creating a data record that can be used when cleaning the cabin air ducts using cleaning techniques suitable for cleaning the respective air duct elements using a sequence of cleaning acts suitable for cleaning select elements of the cabin air ducts. The data record includes identification information which can be used to report incidents to the relevant aviation authority.

There is disclosed a method and system for determining the partial pressure of at least one gas in a mixture of gasses contained in a pressure vessel, in particular a pressure vessel in the form of a life support pressure chamber/decompression chamber, or a diving gas storage cylinder. The method comprises the steps of: coupling a gas analysis sensor (14) to a pressure vessel (10); directing a portion of the mixture of gasses in the pressure vessel to the sensor for analysis; reducing the pressure of the portion of the mixture which is to be analyzed by the sensor to a level which is below the pressure in the vessel but above local atmospheric pressure; operating the sensor to measure the partial pressure of the at least one gas at the reduced pressure level; and using the partial pressure of the at least one gas, measured at the reduced pressure level, to determine the actual partial pressure of said gas in the mixture contained in the vessel.

An air sampling actuator and associated method are disclosed. The air sampling actuator may include a housing configured to mount on a canister, a motor configured to be accommodated in the housing, and an adaptor. The motor may generate a mechanical action, in response to a control signal received by the motor. The adaptor may be coupled to the motor, and configured to interface with a valve-controlling knob of the canister. In a first configuration of the air sampling actuator, the adaptor may be uncoupled from the valve-controlling knob of the canister, and the hook portion may be unengaged with the canister. In a second configuration of the air sampling actuator, the adaptor may be coupled with the valve-controlling knob of the canister, and the hook portion may be engaged with the canister.