The present invention relates to a test film for detecting surface particles in a clean room in order to prevent inferior products by measuring the contamination level of the clean room using the surface particles. The present invention provides a test film for detecting surface particles in a cleanroom, the test film comprising a substrate which has a predetermined thickness and is formed of a transparent synthetic resin material; a first adhesive layer which is formed at one side of the substrate and collects the surface particles; a release film which is adhered to the first adhesive layer and is separated from the first adhesive layer when the surface particles are collected; a second adhesive layer which is formed at the other side of the substrate; and a protective film which is adhered to the second adhesive layer so as to protect the substrate and has gradations indicated thereon. According to the present invention, there is an effect in that it is possible to easily and quickly check whether or not a clean room is contaminated by collecting, on the adhesive layer-applied surface of a substrate to which an adhesive is applied, surface particles adhered to an object to be measured, and then measuring the number, size, distribution, etc. of the surface particles with the naked eye or using instruments such as a light, a magnifier, a microscope, or the like.

A sample extraction device and a desorption device for use in gas chromatography (GC), gas chromatography-mass spectrometry (GCMS), liquid chromatography (LC), and/or liquid chromatography-mass spectrometry (LCMS) are disclosed. In some examples, the sample extraction device includes a lower chamber holding a sorbent. The sample extraction device can extract sample headspace gas from a sample vial by placing the sorbent inside the vial and creating a vacuum to increase recovery of low volatility compounds, for example. Once the sample has been collected, the sample extraction device can be inserted into a desorption device. The desorption device can control the flow of a carrier fluid (e.g., a liquid or a gas) through the sorbent containing the sample and into a pre-column and/or a primary column of a chemical analysis device for performing GC, GCMS, LC, LCMS, and/or some other chemical analysis process.

To sample cooling water from a discharge pipe under vacuum, with a simple structure and without using a large-scale device. Provided is a sampling system for sampling cooling water flowing through a discharge pipe extending from a condenser to a sea. The sampling system includes: a bypass pipe branched off from the discharge pipe and joining the discharge pipe; two shutoff valves provided in the bypass pipe; a sampling pipe branched off from the bypass pipe between the two shutoff valves; a vent pipe branched off from the bypass pipe between the two shutoff valves; a sampling valve provided in the sampling pipe; and a vent valve provided in the vent pipe.

An automatic fluid sampling system, comprising: a sample flow-through conduit in fluid communication with a fast loop or slip stream off of a fluid process line or pipe, a solenoid or other valve disposed for regulating fluid flow from the fast loop line into the sample flow-through conduit; a flow meter in fluid communication with sample flow-through conduit for measuring a volume of a sample allowed to flow through the sample flow-through conduit by the solenoid or other valve; and a sample fluid outlet from which the sample measured by the flow meter exits the sample flow-through conduit.

A method and an apparatus for taking slurry samples from a continuous gravity process flow (PF). The sampling is carried out in two stages by first and second sampling units (1, 2). The primary sample flow (PSF) and the secondary sample flow (SSF) are arranged as pressureless open-channel type flows, so that the flow rate of the secondary sample flow (SSF) to be led for analysis is approximately proportional to an instantaneous flow rate of the process flow (PF). In the apparatus, the first sampling unit (1) and the second sampling unit (2) comprise venting means (23, 24) adjacent the upper ends (25, 26) of their respective first and second side walls (7, 8; 13; 14) to allow equalizing of the atmospheric pressure prevailing inside and outside the first and second sampling units above free liquid levels (27, 28) of the primary and secondary slurry flows (PSF, SSF) along the entire lengths of the sampling units to form pressure—less open-channel type flow paths for the primary and secondary sample flows (PSF, SSF).

A method and an apparatus for taking slurry samples from a continuous gravity process flow (PF). The sampling is carried out in two stages by first and second sampling units (1, 2). The primary sample flow (PSF) and the secondary sample flow (SSF) are arranged as pressureless open-channel type flows, so that the flow rate of the secondary sample flow (SSF) to be led for analysis is approximately proportional to an instantaneous flow rate of the process flow (PF). In the apparatus, the first sampling unit (1) and the second sampling unit (2) comprise venting means (23, 24) adjacent the upper ends (25, 26) of their respective first and second side walls (7, 8; 13; 14) to allow equalizing of the atmospheric pressure prevailing inside and outside the first and second sampling units above free liquid levels (27, 28) of the primary and secondary slurry flows (PSF, SSF) along the entire lengths of the sampling units to form pressure—less open-channel type flow paths for the primary and secondary sample flows (PSF, SSF).

The present invention is a urinal screen that includes a main body having an extended upper surface, a corresponding extended lower surface, and a marginal edge portion integral with an surrounding the upper surface and the lower surface; a plurality of spaced apart apertures formed to extent through the main body to provide fluid communication between the upper surface and the lower surface of the main body; and a two-sided spreading layer attached to the main body for accepting a urine sample on a upper side and passing the sample to a lower side, opposite and each side containing a reagent that can react with glucose in the urine sample, as it passes through the two-sided spreading layer, to cause a color change in the reagent.

The present invention is a urinal screen that includes a main body having an extended upper surface, a corresponding extended lower surface, and a marginal edge portion integral with an surrounding the upper surface and the lower surface; a plurality of spaced apart apertures formed to extent through the main body to provide fluid communication between the upper surface and the lower surface of the main body; and a two-sided spreading layer attached to the main body for accepting a urine sample on a upper side and passing the sample to a lower side, opposite and each side containing a reagent that can react with glucose in the urine sample, as it passes through the two-sided spreading layer, to cause a color change in the reagent.

A method of obtaining a sample of materials includes building a product through an additive manufacturing process. A capsule is formed with an internal chamber inside of the capsule. The capsule is formed during the building of the additive manufacturing product. A sample of powder is encapsulated inside the internal chamber as the capsule is built. The internal chamber is hermetically sealed from an exterior environment to retain the sample of powder in the internal chamber.

Low or no disturbance sampling can be accomplished such as through a single-platform aquatic species and habitat sampling system with data integration and rapid processing capabilities that can address the need for sampling at variable depths over varied habitats, along with the simultaneous collection of linked physical and biological data. The platform may be based on a 24-36 foot boat, and may include a net mouth opener brace for an adjustable concentrator net and smaller drift net which may be attached to an adjustable sample chamber, perhaps containing variable mesh capture nets as well as cameras, water sampling equipment, and water quality sensors integrated with a fish finder, GPS, and other monitoring and data recording equipment. The depth of the net mouth opener brace and sample chamber may be adjustable using a depth control.