Testing methods
Ever since it was set up the IOC has been involved in developing physico-chemical tests for olive oils and olive-pomace oils aimed at differentiating between each grade and at checking product authenticity.
CHEMICAL TESTING METHODS
The technological advances in fats and oils analysis have been accompanied by a growing awareness of the need for ever more effective control of the purity and quality of the olive oils that are sold, especially on markets where olive oil consumption is being promoted. This moved the IOC to invite olive oil chemistry experts from its member countries to collaborate in searching for methods, particularly to detect fraud.
Since 1988, the chemists have been meeting twice a year. Their work has led to the adoption by the IOC of olive oil-specific methods to detect seed oils, desterolised seed oils, olive-pomace oil or traces of halogenated solvents, among others.
The resultant IOC-approved methods bear the reference COI/T.20 and are listed in section 11 of the trade standard.
COLLECTION OF METHODS ADOPTED BY THE INTERNATIONAL OLIVE COUNCIL FOR CHEMICAL ANALYSIS OF OLIVE OILS AND OLIVE-POMACE OILS
| COI/T.20/DOC. 10 - 2001 DETERMINATION OF STEROLS COMPOSITION AND CONTENT BY CAPILLARY COLUMN CHROMOTOGRAPHY | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | |
| COI/T.20/DOC. 11 - 2001 DETERMINATION OF STIGMASTADIENES IN VEGETABLE OILS | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC. 16 - 2001 DETERMINATION OF STERENES IN REFINED VEGETABLE OILS | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC. 17 - 2001 DETERMINATION OF TRANS UNSATURATED FATTY ACIDS BY CAPILLARY COLUMN GAS CHROMATOGRAPHY | |||
| ENGLISH | FRANÇAIS | ITALIANO | |
| COI/T.20/DOC. 18 - 2003 DETERMINATION OF WAX CONTENT BY CAPILLARY COLUMN GAS-LIQUID CHROMATOGRAPHY | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| DECISION NO DEC-19/96-V/08 DETERMINATION OF ABSORBENCY IN THE ULTRAVIOLET | ||||
| ENGLISH | FRANÇAIS | ESPAÑOL | عربية | |
| COI/T.20/DOC. 19 - Rev. 3 - SPECTROPHOTOMETRIC INVESTIGATION IN THE ULTRAVIOLET | ||||
| ENGLISH | FRANÇAIS | |||
| DECISION NO DEC-20/98-V/2010 DETERMINATION OF THE DIFFERENCE BETWEEN ACTUAL AND THEORETICAL CONTENT OF TRIACYLGLYCEROLS WITH ECN 42 | ||||
| ENGLISH | FRANÇAIS | |||
| COI/T.20/DOC. 20 - 2010 DETERMINATION OF THE DIFFERENCE BETWEEN ACTUAL AND THEORETICAL CONTENT OF TRIACYLGLYCEROLS WITH ECN 42 | ||||
| ENGLISH | FRANÇAIS | |||
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| COI/T.20/DOC. 23 – 2006 DETERMINATION OF THE PERCENTAGE OF 2-GLYCERYL MONOPALMITATE | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | |
| COI/T.20/DOC. 24 - 2001 PREPARATION OF THE FATTY ACID METHYL ESTERS FROM OLIVE OIL AND OLIVE-POMACE OIL | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC. 26 - 2003 DETERMINATION OF ALIPHATIC ALCOHOLS CONTENT BY CAPILLARY GAS CHROMATOGRAPHY | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC. 28 - 2010 DETERMINATION OF THE CONTENT OF WAXES, FATTY ACID METHYL ESTERS AND FATTY ACID ETHYL ESTERS BY CAPILLARY GAS CHROMATOGRAPHY | |||
| ENGLISH | FRANÇAIS | ||
| COI/T.20/DOC. 29 - 2009 - DETERMINATION OF BIOPHENOLS IN OLIVE OILS BY HPLC | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| DECISION - DEC-21/99-V/2011 - ON THE METHOD FOR THE DETERMINATION OF THE COMPOSITION AND CONTENT OF STEROLS AND TRITERPENE DIALCOHOLS BY CAPILLARY COLUMN GAS CHROMATOGRAPHY |
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| ENGLISH | FRANÇAIS | ||
| COI/T.20/DOC. NO 30 - 2011 DETERMINATION OF THE COMPOSITION AND CONTENT OF STEROLS AND TRITERPENE DIALCOHOLS BY CAPILLARY COLUMN GAS CHROMATOGRAPHY | |||
| ENGLISH | FRANÇAIS | ||
PRECISION VALUES OF THE METHODS OF ANALYSIS ADOPTED BY THE INTERNATIONAL OLIVE COUNCIL
| COI/T.20/DOC. NO 42-2/Rev.1 - 2011 PRECISION VALUES OF THE METHODS OF ANALYSIS ADOPTED BY THE INTERNATIONAL OLIVE COUNCIL | |||
| ENGLISH | FRANÇAIS | ||
METHODS GIVEN PROVISIONAL APPROVAL
| RESOLUTION NO RES-3/94-V/06 ON THE DETECTION OF HAZELNUT OIL IN OLIVE OIL | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC. NO 25 – 2006 GLOBAL METHOD FOR THE DETECTION OF EXTRANEOUS OILS IN OLIVE OILS | |||
| ENGLISH | ESPAÑOL | ITALIANO | |
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| DECISION NO DEC-17/97-V/09 IDENTIFICATION AND QUANTIFICATION OF THE PHENOLICS IN OLIVE OIL | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COLORIMETRIC DETERMINATION OF O-DIPHENOLS IN OLIVE OILS - METHOD OF A. CERT | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
ORGANOLEPTIC ASSESSMENT METHODS
COLLECTION OF METHODS AND STANDARDS ADOPTED BY THE INTERNATIONAL OLIVE COUNCIL FOR SENSORY ANALYSIS OF OLIVE OILS, OLIVE-POMACE OILS AND TABLE OLIVES
| DECISION N0 DEC-21/95-V/07 : REVISED METHOD FOR THE ORGANOLEPTIC ASSESSMENT OF VIRGIN OLIVE OIL | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC. 4/REV.1 - 2007 SENSORY ANALYSIS: GENERAL BASIC VOCABULARY | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC. 5/REV.1 - 2007 GLASS FOR OIL TASTING | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC. 6/REV.1 - 2007 GUIDE FOR THE INSTALLATION OF A TEST ROOM | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC.14/REV. 3 - GUIDE FOR THE SELECTION, TRAINING AND MONITORING OF SKILLED VIRGIN OLIVE OIL TASTERS | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| DECISION DEC-20/99-V/2011 - REVISED METHOD FOR THE ORGANOLEPTIC ASSESSMENT OF VIRGIN OLIVE OIL | |||
| ENGLISH | FRANÇAIS | ||
| COI/T.20/DOC.15/REV. 4 - ORGANOLEPTIC ASSESSMENT OF VIRGIN OLIVE OIL | |||
| ENGLISH | FRANÇAIS | ||
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| RESOLUTION NO RES-2/93-IV/05 ORGANOLEPTIC ASSESSMENT OF DO EXTRA VIRGIN OLIVE OIL | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.20/DOC. 22 - 2005 ORGANOLEPTIC ASSESSMENT OF DO EXTRA VIRGIN OLIVE OIL | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| DECISION NO DEC-20/95-V/2007 GUIDELINES FOR THE ACCREDITATION OF LABORATORIES UNDERTAKING THE SENSORY ANALYSIS OF VIRGIN OLIVE OILS | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| COI/T.28/DOC.1 GUIDELINES FOR THE ACCREDITATION OF SENSORY TESTING LABORATORIES WITH PARTICULAR REFERENCE TO VIRGIN OLIVE OIL ACCORDING TO STANDARD ISO/IEC 17025:2005 | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
| CHECK-LIST | |||
| ENGLISH | FRANÇAIS | ESPAÑOL | ITALIANO |
SENSORY ANALYSIS OF TABLE OLIVES
| DECISION NO DEC-18/99-V/2011 - SENSORY ANALYSIS OF TABLE OLIVES | ||||
| ENGLISH | FRANÇAIS | |||
| COI/OT/MO/DOC.1/REV. 2 - 2011 - METHOD FOR THE SENSORY ANALYSIS OF TABLE OLIVES | ||||
| ENGLISH | FRANÇAIS | |||
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COI/OT/GFMO - 2011 - GUIDELINES FOR TASTER AND PANEL LEADER TRAINING IN THE SENSORY ASSESSMENT OF TABLE OLIVES AND PANEL MANAGEMENT ACCORDING TO STANDARD |
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| ENGLISH | FRANÇAIS | |||
>> Computer Program Excel File (ENGLISH)
