Methods for testing the integrity of a containment sump in contact with a matrix with a testing apparatus are provided. The testing apparatus may include an underground fixture positioned in contact the matrix, a test chamber, a conduit structure providing fluid communication between the underground fixture and the test chamber, and a pressure source for exerting a pressure that is communicated to the underground fixture via the conduit structure. In some embodiments, a method may include: releasing a test media into the containment sump; generating a negative pressure within the testing apparatus for a time period; and testing for the presence of test media within the testing apparatus. In other embodiments, a method may include: releasing a test media into the testing apparatus; generating a positive pressure within the testing apparatus for a time period; and testing for the presence of test media within the containment sump.

According to the method, either CO2-free air or pure nitrogen N2 is pumped into the cooling circuit selectively depending on system parameters. To this end, the method ensures that the air injection rate is high enough that, under normal conditions, the hydrogen concentration in the tank and in the riser remains below 2% H2. On air injection, the oxygen O2 (>2 ppm) in the cooling water reacts with the copper in the cooling ducts and a layer of copper oxide forms on the inner walls of said ducts. No reaction is triggered by the injection of nitrogen N2. The CO2 content in the injection air and, at the same time, also the H2 content in the exhaust air are continuously measured and monitored, and an alarm is triggered if adjustable limit values are exceeded. The equipment for performing the method comprises an electronic control unit (65) with an input field and display as a control box, and a pump and a pipe circuit for drawing air in from the riser. The control unit (65) can evaluate all the measured data from the sensors and analysers connected to the pipe and can at least check the CO2 content in the supply air and the H2 content in the riser (13) and display the hydrogen leakage.

A gas-detecting apparatus, having a gas inlet and a gas outlet, for detecting a false alarm is disclosed. The gas-detecting apparatus comprises a control module, a sensor module, and an air chamber. In an example embodiment, the sensor module is electrically connected with the control module. The sensor module has a sensor inlet and a sensor outlet. The sensor inlet is fluidly coupled to the gas inlet of the gas-detecting apparatus. The air chamber has an air inlet and an air outlet, wherein the air inlet is fluidly coupled to the gas inlet of the gas-detecting apparatus and the air outlet is fluidly coupled to the gas outlet. The control module is configured to receive a first sensing signal for a first level of gas from the sensor module and determine whether magnitude of the first sensing signal is higher than a first threshold value. In an instance when the magnitude of the first sensing signal is higher than the first threshold value, the control module causes the air chamber to supply ambient air to the sensor module through the sensor inlet of the sensor module.

A device (1; 2; 3; 4; 5) is provided for carrying out an integrity test on a sample of disposable components. The device has a medium chamber (10) with an inner chamber (11) that is bounded to the outside, for the purpose of receiving a culture medium. The device also has a sample holder (20) in which the sample (100) can be arranged in such a way that the sample (100) at least partially bounds the medium chamber (10) to the outside. The medium chamber (10) has a vent line (19) that is arranged on a side of the medium chamber (10) facing away from the sample holder (20).

An apparatus for mixing a liquid or pasty product. The apparatus comprises a first housing part (11) and a second housing part (12) assembled together. The assembly of the first housing part (11) and the second housing (12) part forms•—a housing inner space (17) between an inlet (4) and an outlet (5), •—a cooling jacket (7) for circulation of a coolant fluid around the housing inner space (17), and•—a buffer jacket (9) for circulation of a clean fluid, the buffer jacket (9) being formed between the cooling jacket (7) and the housing inner space (17). The buffer jacket protects the mixed product from contamination by the coolant fluid. It also facilitates detection of leakage between the housing inner space and the buffer jacket. The invention also relates to a corresponding method.

An electronic device includes a housing configured to form at least a portion of an outer surface of the electronic device; a battery disposed inside the housing; a circuit board disposed inside the housing; a gas sensor module including at least one gas sensor and mounted in the circuit board; and at least one wall disposed adjacent to the gas sensor module, wherein in the at least one wall, a first opening configured to introduce a gas leaked from the battery and a second opening configured to introduce air outside the electronic device are formed.

Leak detection device having a dome with a main body and a seal configured to define a detection chamber between the main body and the test zone, the seal including a peripheral sealing lip configured to come into contact with the sealing membrane and having a closed contour encircling the detection chamber, an analysis tool connected to the detection chamber to analyze a gas present in the detection chamber in which the sealing lip is configured to have at least in a service state in which a reduced pressure is applied in the detection chamber, a pinch portion that is pinched between the main body and the sealing membrane.

A leak detecting device for a fluid filled vessel including (1) a housing having a continuous perimeter edge sized to extend around an underwater surface; (2) a tube extending through an aperture of the housing, having a first end on an first side of the housing and a second end on a second side of the housing; (3) an anchoring attachment secured to the first end of the tube; (4) a resilient member secured to the perimeter edge of the housing and adapted to contact and form a seal between the housing and the underwater surface; and (5) an opening through an entirety of a wall of the housing, wherein the opening is accessible from the second side of the housing.

A packaging fill material for electrical packaging includes a base material, and a plurality of frangible capsules distributed in the base material. Each frangible capsule includes a liquid penetrant contrast agent therein having a different radiopacity than the base material. In response to a crack forming in the packaging fill material, at least one of the plurality of frangible capsules opens, releasing the liquid penetrant contrast agent into the crack. Cracks can be more readily identified in an IC package including the packaging fill material. The liquid penetrant contrast agent may have a radiopacity that is higher than the base material. Inspection can be carried out using electromagnetic analysis using visual inspection or digital analysis of the results to more easily identify cracks.

Disclosed is a battery device including a battery; a plurality of sensors attached to the battery; and a transceiving circuit configured to transmit a signal received from a monitoring device to the plurality of sensors and to transmit signals received from the plurality of sensors to the monitoring device. The plurality of sensors generate surface acoustic waves (SAWs) in response to the signal received from the monitoring device, when receiving the signal from the monitoring device through the transceiving circuit, and the plurality of sensors include at least one first sensor configured to output a first signal corresponding to a SAW varied depending on a temperature of the battery; at least one second sensor configured to output a second signal corresponding to a SAW varied depending on pressure of the battery; and at least one third sensor configured to output a third signal corresponding to a SAW varied depending on an electrolyte leakage state of the battery.