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Class Information
Number: 356/243.2
Name: Optics: measuring and testing > Standard > For fluid suspended particles
Description: Standard wherein the specimen is a non homogenous mixture of an analyzed component in a dispersion medium.

Patents under this class:

Patent Number Title Of Patent Date Issued
8675196 Analyzer and particle imaging method Mar. 18, 2014
8373854 Luminescence reference standards Feb. 12, 2013
8158438 Method for the determination of the concentration of a non-volatile analyte Apr. 17, 2012
8102528 Particle standard and method of calibrating or validating an optical particle analyzer Jan. 24, 2012
7843560 Stable turbidity calibration standards Nov. 30, 2010
7820428 Portable light generation and detection system Oct. 26, 2010
7742164 Luminescence reference standards Jun. 22, 2010
7518719 Contaminant analyzer for fuel Apr. 14, 2009
7162057 Apparatus for and method of monitoring particulate material in a fluid Jan. 9, 2007
6629449 Bubble measuring instrument and method Oct. 7, 2003
6327889 Device and method for introducing surrogates, particularly metal surrogates, into an exhaust stream, for simulating an exhaust stream, and for establishing a standardized source Dec. 11, 2001
6088098 Calibration method for a laser-based split-beam method Jul. 11, 2000
5912737 System for verifying the calibration of a turbidimeter Jun. 15, 1999
5747667 Particle counter verification method May. 5, 1998
5741441 Non-liquid scatter standard Apr. 21, 1998
5596405 Method of and apparatus for the continuous emissions monitoring of toxic airborne metals Jan. 21, 1997
5568266 Colorimeter and colorimetrical control device Oct. 22, 1996
5506677 Analysis of wear metals in perfluorinated fluids Apr. 9, 1996
5467187 Automatic calibration system for turbidimeters using a pulsing fluid flow to reciprocate a standard in a cuvette Nov. 14, 1995
5328852 Analytical assay Jul. 12, 1994
5159403 Flow cell mechanism in flow imaging cytometer Oct. 27, 1992
5139332 Optical emission spectrochemical standard for metals and alloys Aug. 18, 1992
5123738 Standard substance for optical calibration and method of making same Jun. 23, 1992
5093234 Method of aligning, compensating, and calibrating a flow cytometer for analysis of samples, and microbead standards kit therefor Mar. 3, 1992
5089416 Method of use of non-fluorescent particles to determine fluorescence threshold of a flow cytometer relative to the autofluorescence of samples Feb. 18, 1992
5084394 Method for corrective calibration of a flow cytometry using a mixture of fluorescent microbeads and cells Jan. 28, 1992
5073497 Microbead reference standard and method of adjusting a flow cytometer to obtain reproducible results using the microbeads Dec. 17, 1991
4832488 Method for correction of calibration curve in dry analytical process May. 23, 1989
4767206 Calibration method for flow cytometry using fluorescent microbeads and synthesis thereof Aug. 30, 1988
4669542 Simultaneous recovery of crude from multiple zones in a reservoir Jun. 2, 1987
4640621 Transmissometer and optical elements therefor Feb. 3, 1987
4434647 Dynamic spot calibration for automatic particle counters Mar. 6, 1984
4380392 Method and apparatus for calibration of instruments serving to count and to determine the size of particles suspended in dispersion medium Apr. 19, 1983
4367950 Combined aerosol monitor and calibrateable light ray scattering reference rod Jan. 11, 1983
4331862 Method for calibrating a particle counting machine and a calibration standard therefor May. 25, 1982
4291981 Reference scatter for use in the correction of scattering photometers Sep. 29, 1981
4247783 Photoelectric converter of sizes of particles employing calibration light pulses with increased stability Jan. 27, 1981
4232967 Instrument for measuring sizes and quantity of particles in fluid medium Nov. 11, 1980
4144458 Smoke detector with test means for simulating a predetermined concentration of smoke Mar. 13, 1979
4144459 Smoke detector with test means for simulating a predetermined percentage of smoke Mar. 13, 1979
4135821 Calibration of optical particle-size analyzer Jan. 23, 1979
4111560 Method and apparatus for determining a property of a given substance Sep. 5, 1978
4093867 Apparatus for automatically calibrating and testing smoke detectors Jun. 6, 1978
3997271 Device for calibrating a transmissometer Dec. 14, 1976
3994601 Dynamic calibration unit for a transmissometer Nov. 30, 1976
3980517 Continuous on-machine control of bleaching chemicals Sep. 14, 1976
3972625 Milk fat content-measuring apparatus Aug. 3, 1976
3944834 Pollution monitor with self-contained calibration and cell-block therefor Mar. 16, 1976
3942899 Calibrating device for light scatter photometering instrument Mar. 9, 1976

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