微粒子フィルタおよびその使用方法並びに製造方法

Japanese Patent JP4699394

B2

A particulate filter particularly suited for analytical gravimetric weighing applications is disclosed. The particulate filter includes a polytetrafluoroethylene (PTFE) media supported by a ring and yields stable microgram and submicrogram weighing results. The support ring may be PTFE, metal foil, or another non-hygroscopic polymer such that the mass of the filter does not vary with changes in atmospheric moisture. The filter simplifies the discharge of electrostatic charge buildup such that when a conductive filter media is combined with a conductive ring device, the discharge may be accomplished by placing the filter on a grounded weighing pan or other surface. The particulate filter can simplify filter identification by including identification symbols imprinted on each side of the filter media. Due to the chemically inert qualities of its components, the particulate filter is particularly suited for extraction techniques used during the detection of polycyclic hydrocarbons as is conducted in emissions and ambient air testing.

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WO/2002/015964	BACTERIAL TOXIN ADSORBING MATERIAL, METHOD OF REMOVING THE TOXIN BY ADSORBING, AND ADSORBER FORMED BY FILLING THE ADSORBING MATERIAL THEREIN

Dicken, David A.
Nelson, Robert Oh.

JP2006554192A

June 08, 2011

February 16, 2005

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MEASUREMENT TECHNOLOGY LABORATORIES CORPORATION

B01D39/16; B01D63/02; B01D63/08; B01D69/02; B01D69/06; B01D69/10; B01D71/36; G01N1/00; G01N1/02; G01N1/22; G01N15/06; G01N35/00; G01N5/02; G01N15/00

JP62024918U
JP2000046702A
JP9201505A
JP56176017U
JP2002370020A
JP9504737A
JP58039490A

Hironobu Onda
Makoto Onda

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