Described herein is an ammonia compound indicator comprising an adhesive and a chemochromic compound disposed therein. Also described are methods of making the aforedescribed elements and methods for indicating the presence of ammonia.

A corrosion monitoring device for pipe systems according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The corrosion monitoring device further includes a structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor a pressure in the sealed chamber or for sensing a liquid in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems are also disclosed.

A corrosion monitoring device for pipe systems according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The corrosion monitoring device further includes a structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor a pressure in the sealed chamber or for sensing a liquid in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems are also disclosed.

A fire sprinkler system according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The fire sprinkler system further includes structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a liquid in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems, including fire sprinkler systems, are also disclosed.

An improved fitting assembly for analytical devices is provided. The fitting assembly includes a tube securable to a fitting component via rear and front ferrules and a nut. The fitting component includes a body having a cavity for receiving the tube and ferrules. The body also includes a channel connecting the cavity to a leak chamber defined in a space between the tube, the fitting component and the inner sidewall of the nut body, the leak chamber being in fluid communication with the exterior of the nut body via the channel in the nut body. Sealing elements are provided between the tube and nut for encouraging leaks to flow through the leak path. A method for detecting leaks in the fitting assembly is also provided.

The present disclosure relates to a sensor system for monitoring the sealing of the connection between a sensor holder and a sensor that is mounted on the sensor holder. The sensor system includes a sensor holder, a sensor that is mounted on the sensor holder, and a leakage detector with a channel, which is arranged in the sensor holder and consists of one or more straight sections that are mounted perpendicular or parallel to the longitudinal axis of the sensor.

Invisible tube markers for use in infusion sets are provided. An infusion tube includes a tube marker that is invisible under standard lighting conditions and is positioned from a tube end at a distance equal to the distance between an external edge and a hard stop of a fluid port of an infusion set component. Under special lighting, the tube marker becomes visible and provides an external visual indicator of the fit between the infusion tube and the infusion set component, such as whether there is a gap between the end of the infusion tube and hard stop of the fluid port. The tube marker may be pad printed on the tube. Methods of providing tube markers are also provided.

A fire sprinkler system according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The fire sprinkler system further includes structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a pressure in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems, including fire sprinkler systems, are also disclosed.

A system and a method for accurately testing gas leak detectors by considering multiple operational parameters as per the standard requirements are disclosed. The system comprises one or more gas cylinders, a test execution chamber, mass flow controllers (MFCs), and a control system. The test execution chamber is connected to the gas cylinders via test gas pipelines and a plurality of valves, and the mass flow controllers. The test execution chamber further comprises a first chamber and a second chamber, which are connected to form a closed cycle, thereby saving consumption of the testing gases. The control system in communication with the mechanized system, thereby controlling the operation of the system for accurately testing the gas leak detector test samples. The performance of the one or more gas leak detector test samples is controlled by adjusting the density of the testing gas to a predetermined value and as per the standard requirements.

The invention concerns the field of container closure integrity (CCI) and the testing of CCI and relates to a device and a method for providing a displacement of a rubber stopper for leakage testing of a connection between the rubber stopper and a corresponding drug container which can be used for storing drugs under sterile conditions and which is closed by said rubber stopper.