Abstract: Provided is a time measurement apparatus having a transport device for a liquid, at least one sensor and at least one display which is at least communicatively connected to the sensor, is optically freely accessible and is intended to display a contact duration of the time measurement apparatus with the liquid or an item of meta information derived from the contact duration. The transport device includes at least one reservoir region for receiving liquid from an environment of the time measurement apparatus through an entrance area, at least one detection region for detecting the liquid and at least one time region having a number of channels for transporting the liquid from the reservoir region to the detection region in a defined transport duration. The sensor is designed to detect the liquid in the detection region at an end of the time region which is remote from the reservoir region.

Abstract: Provided is a time measuring device, including a strip of absorbent material, which is sheathed by an air-tight material, wherein the sheath includes in the lower half at least one hole, and wherein a dye is applied on up to 90% of the surface of the strip. Embodiments of the invention also relate to a method for the use thereof.

Abstract: A device for removing particulates from a gas stream includes a receptacle and a duct assembly located at least partially within the receptacle. The duct assembly has an inlet duct communicating with a first velocity-reduction zone which includes first and second ducts branched from the inlet duct. The assembly also includes a second velocity-reduction zone communicating with the first zone and with a chamber, the second velocity-reduction zone includes a branched third and fourth ducts branched from a duct of the first zone.