Abstract: A fluid-tightly sealable sampling device for analysis of one or more substances in a fluid flow intended to pass through the sampling device is disclosed, wherein it comprises an adsorption device (1) which is hollow and is adapted to be provided with one or more reagents for adsorption of and reaction with said one or more substances in the fluid flow, a filter holder (2), which is hollow and is connected in a fluid-tight way with the adsorption device (1), a filter device (4) adapted to be provided with one or more reagents for adsorption of and reaction with said one or more substances in the fluid flow, a gasket (5) provided with at least one projection (6) engaged with at least one corresponding receiving slot in the filter holder (2), a first external cap (9) detachably connected with the inlet end of the sampling device in a fluid-tight way and a second external cap (13) detachably connected with the outlet end of the sampling device in a fluid-tight way.

Abstract: A method for active or passive sampling of particles and gas phase organic and non-organic components in a fluid flow (4) is disclosed, wherein said method comprises the step in which a sampling device comprising a first denuder device (1), a filter device (3), and a second denuder device (2), arranged in axial direction in a series in said order, is provided at a measurement spot, wherein the first denuder device (1) and the second denuder device (2) each is hollow and contains surfaces provided with a hydrophobic and/or a hydrophilic sorbent, or said second denuder device (2) contains a packing of hydrophobic and/or hydrophilic sorbent particles, as well as a sampling device used in said method.

Abstract: A differential thermal mass flow meter assembly (1) for measuring a mass flow of a gas or liquid is disclosed, wherein it comprises: a flow channel (2), in which the gas or liquid is flowing, at least two heating elements (4, 4?, 4?) arranged in the flow direction on the inside wall (3) of said flow channel (2), at least one thermal sensor (5) arranged in the flow direction up-stream said heating elements (4, 4?, 4?) on the inside wall (3) of said flow channel (2), at least one thermal sensor (6?) arranged in the flow direction down-stream said heating elements (4, 4?, 4?) on the inside wall (3) of said flow channel (2), as well as a method of measuring the mass flow of a gas or liquid using said differential thermal mass flow meter assembly.

Abstract: The invention relates to methods for verification of correct function of sampling equipment is disclosed, wherein said method comprises the steps of: a) providing a pump assembly (1) comprising an inlet (2) and an outlet (3), a flow channel (4) extending between said inlet (2) and outlet (3), a pump located along said flow channel (4) adapted to force an gas flow through said flow channel (4), a first mass flow sensor (6) located inside said flow channel (4), a first pressure sensor (7) located near said first mass flow sensor (6) adapted to measure a first pressure inside said flow channel (4), and a second pressure sensor (8) located outside said flow channel (4), said second pressure sensor (8) being adapted to measure a second pressure being the ambient atmospheric pressure, b) calculating the pressure difference between said first pressure and said second pressure c) calculating any error in an output signal from the mass flow meter by comparing said pressure difference with a value in a pre-calibrated t

Abstract: A flow regulating system for maintaining a stable air flow comprising at least one pump, a mass flow sensor, an ambient temperature sensor, an ambient pressure sensor, a temperature compensation sensor measuring the temperature of said mass flow sensor, and a control system is disclosed, as well as a method for measuring a flow using said flow regulating system, a device for the monitoring of air-borne compounds present in air in both a gas phase and a particle phase, wherein it comprises a sampling device, an enrichment trap 1, a calibration and tuning module, a blank module, said flow regulating system, a chromatography unit, and a detection unit, and a method for the detection of air-born compounds in an air flow by using said monitoring device.

Abstract: A sampling device for analysis of a substance which is chosen from the group consisting of isocyanates, aminoisocyanates, amines, and isothiocyanates, and which is present in an air flow intended to pass through the sampling device is disclosed, as well as a method for the production of said sampling device, and a method for the analysis of said substance in the air flow.

Abstract: A sampling device is described for analysis of a substance, wherein the substance is selected from the group consisting of isocyanates, aminoisocyanates, isothiocyanates, anhydrides, amines and carboxylic acids and can be present in both gas and particle phases in an air flow passed, for sampling, through the sampling device, said device comprising: a) an adsorption device comprising a coating, wherein said coating comprises a reagent mixture in the form of one or more primary or secondary amines and an acidic compound having the ability to form a salt (or ionic bond) with the amine(s) for adsorption of and reaction with the substance in the gas phase of the air flow; and b) a filter device comprising said mixture of amine(s) and acidic compound for adsorption of and reaction with the substance in the particle phase of the air flow.