ES8302914A1 - "un metodo para determinar cuantitativamente la concentracion de acido libre en un liquido". - Google Patents

"un metodo para determinar cuantitativamente la concentracion de acido libre en un liquido".

Info

Publication number
ES8302914A1
ES8302914A1 ES508076A ES508076A ES8302914A1 ES 8302914 A1 ES8302914 A1 ES 8302914A1 ES 508076 A ES508076 A ES 508076A ES 508076 A ES508076 A ES 508076A ES 8302914 A1 ES8302914 A1 ES 8302914A1
Authority
ES
Spain
Prior art keywords
free acid
article
liquid
neutral
oils
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES508076A
Other languages
English (en)
Other versions
ES508076A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of ES508076A0 publication Critical patent/ES508076A0/es
Publication of ES8302914A1 publication Critical patent/ES8302914A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/03—Edible oils or edible fats
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • G01N31/221—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating pH value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2888—Lubricating oil characteristics, e.g. deterioration

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Food Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

PROCEDIMIENTO PARA LA DETERMINACION CUANTITATIVA DE LA CONCENTRACION DE ACIDO LIBRE EN UN LIQUIDO. CONSISTE EN PONER EN CONTACTO EL LIQUIDO CON UN SOPORTE NO TAMPONADO, ABSORBENTE, POROSO, NEUTRO Y NO REACTIVO QUE CONTIENE UNA COMPOSICION ACTIVA QUE CONSTA DE UN INDICADOR ACIDO BASE QUE CAMBIA DE COLOR EN UN INTERVALO DE PH ENTRE 6 Y 10, UNA CANTIDAD CONOCIDA DEL COMPUESTO BASE REACTIVO CON EL ACIDO LIBRE Y DE 30-99,5 PARTES DE UN DISOLVENTE ORGANICO, HUMECTANTE, NEUTRO, NO VOLATIL; Y A CONTINUACION SE OBSERVA EL CAMBIO DE COLOR PRODUCIDO EN EL INDICADOR. TIENE APLICACION PARA LA DETERMINACION DEL CONTENIDO DE ACIDO LIBRE EN ACEITE PARA COCINAR.
ES508076A 1980-12-19 1981-12-17 "un metodo para determinar cuantitativamente la concentracion de acido libre en un liquido". Expired ES8302914A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21835680A 1980-12-19 1980-12-19

Publications (2)

Publication Number Publication Date
ES508076A0 ES508076A0 (es) 1983-01-16
ES8302914A1 true ES8302914A1 (es) 1983-01-16

Family

ID=22814780

Family Applications (1)

Application Number Title Priority Date Filing Date
ES508076A Expired ES8302914A1 (es) 1980-12-19 1981-12-17 "un metodo para determinar cuantitativamente la concentracion de acido libre en un liquido".

Country Status (7)

Country Link
EP (1) EP0067171B1 (es)
AU (1) AU547596B2 (es)
BR (1) BR8108925A (es)
CA (1) CA1181333A (es)
ES (1) ES8302914A1 (es)
IT (1) IT1172177B (es)
WO (1) WO1982002251A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4532107A (en) * 1984-03-26 1985-07-30 Miles Laboratories, Inc. Reagent test device
SE8401801D0 (sv) * 1984-04-02 1984-04-02 Ekman Carl Lars Bertil Slykapningskvarn for smaved
DE3479157D1 (en) * 1984-04-03 1989-08-31 Biodisk Ab Method and device for producing varying concentration patterns of chemically or biologically active substances
SE456246B (sv) * 1985-08-01 1988-09-19 Biodisk Ab Anordning for kenslighetsbestemning av mikroorganismer innefattande en icke-poros testremsa med tva olika testsubstanser
WO1997012242A1 (en) * 1995-09-27 1997-04-03 Mercury Diagnostics Inc. Direct reading chemical test strip for aqueous solutions

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245557A (en) * 1938-12-22 1941-06-17 Cities Service Oil Co Apparatus for testing used lubricating oils
US2852693A (en) * 1953-01-13 1958-09-16 Standard Oil Co Method and apparatus for measuring the optical properties of liquids
US2770530A (en) * 1953-09-08 1956-11-13 Shell Dev Method of oil testing and composition therefor
IT630626A (es) * 1959-05-15
US3006735A (en) * 1959-09-22 1961-10-31 Morton Salt Co Quick-dip indicator
US3067015A (en) * 1960-01-29 1962-12-04 Ray F Lawdermilt Spoilage indicator for food containers
US3238020A (en) * 1961-07-26 1966-03-01 Du Pont Acid-base test materials
DE1852316U (de) * 1962-03-08 1962-05-24 Boehringer & Soehne Gmbh Mehrfachteststreifen.
US3193356A (en) * 1962-03-28 1965-07-06 Socony Mobil Oil Co Inc Method for determining the presence of strong acids in oils
US3259463A (en) * 1962-11-30 1966-07-05 Socony Mobil Oil Co Inc Method for estimating quickly the neutralization number of automatic transmission fluid
US3580704A (en) * 1966-03-10 1971-05-25 Cons Paper Bahamas Ltd Colorimetric indicators for determining ph of motor oil
US3543570A (en) * 1967-11-21 1970-12-01 Magnaflux Corp Aqueous base penetrant composition and method
US3510263A (en) * 1968-01-05 1970-05-05 Hach Chemical Co Test papers,methods for carrying out chemical analyses and methods for making the test papers
US3791988A (en) * 1972-03-23 1974-02-12 Hoffmann La Roche Diagnostic test for glucose
US3808149A (en) * 1972-04-17 1974-04-30 Virginia Chemicals Inc Refrigeration oil acid test solution and method
FR2295419A1 (fr) * 1974-12-21 1976-07-16 Kyoto Daiichi Kagaku Kk Dispositif de mesure de reflectance et structure de papier de test composite faisant l'objet d'une telle mesure
DE2510633C3 (de) * 1975-03-12 1978-07-13 Boehringer Mannheim Gmbh, 6800 Mannheim Diagnostisches Mittel zum Nachweis von Eiweiß in Körperflüssigkeiten und dafür geeignete Indikatorfarbstoffe
DD137384B1 (de) * 1977-11-04 1981-07-29 Kallies Karl Heinz Indikator-kapillar-roehrchen zur harnstoff-bestimmung

Also Published As

Publication number Publication date
IT8149958A0 (it) 1981-12-18
IT1172177B (it) 1987-06-18
AU7891781A (en) 1982-07-20
IT8149958A1 (it) 1983-06-18
WO1982002251A1 (en) 1982-07-08
EP0067171A4 (en) 1983-04-18
CA1181333A (en) 1985-01-22
BR8108925A (pt) 1982-11-30
ES508076A0 (es) 1983-01-16
AU547596B2 (en) 1985-10-24
EP0067171B1 (en) 1986-01-29
EP0067171A1 (en) 1982-12-22

Similar Documents

Publication Publication Date Title
SE8001063L (sv) Forfarande for bestemning av glukos i ett prov av en kroppsvetska samt testorgan och testanordning for genomforande av forfarandet
US3843325A (en) Indicator for the detection of metal ions
FI841884A0 (fi) Anordning foer bestaemning av joner.
JPS5663262A (en) Ascorbin acid resisting composition for detecting components in liquid sample testing device therefor and method thereof
JPS5849824B2 (ja) アスコルビン酸及びその塩を測定するための組成物および用具
DK217783D0 (da) Praeparat, testmateriale samt fremgangsmade til bestemmelse af tilstedevaerelsen af esteraseaktivitet i en flydende forsoegsproeve
SE7512632L (sv) Testkomposition
CA2237663A1 (en) Test strip incubation device and method
JPS5621064A (en) Composition* test tool and method for measuring ion intensity or specific gravity of liquid sample employing intense high polymer electrolyte
AU554015B2 (en) Ion test means having a porous carrier matrix
SE7909231L (sv) Forfarande och anordning for bestemning av ett vetskeprovs jonstyrka eller densitetstal
ES412118A1 (es) Un dispositivo de ensayo para determinar la presencia de acido ascorbico en fluidos.
NO841745L (no) Ione-proeveinnretting med en hydrofil baerematrix
SE7904890L (sv) Komposition, testanordning och forfarande for bestemning av nervaro av urobilinogen i ett prov
EP0441470A3 (en) Process for separating and measuring trace components
CA2046657A1 (en) Test swab and methods of making and using same
JPS57203943A (en) Method of and apparatus for detecting concentration of metal ion
Krupkowski et al. The Problem of Material Saving in Strength Tests. II.--Small Cylindrical Samples to Test Impact Resistance
ATE892T1 (de) Verfahren und vorrichtung zur pruefung des durchschlagverhaltens von beschichtungsmassen und beschichtungstraegern.
JPS56132563A (en) Reagent for testing biological material and use thereof
JPS5548648A (en) Measuring method for gas concentration and quantity
JPS51120788A (en) Automatic urine analyzer
EP0105413A3 (en) Cell detection by measurement of flavin adenine dinucleotide
ATA323078A (de) Anordnung zur optischen messung von stoffkonzentrationen
GB1527225A (en) Testing device