Turbidity (Type IV)
OIV-MA-BS-28 Measurement of turbidity by nephelometry
Type IV method
- Purpose
The purpose of the present document is to describe an optical method for determining the turbidity index (or diffusion index) of an alcohol or alcoholic beverage.
Chromatic characteristics (Type IV)
OIV-MA-BS-27 Determination of chromatic characteristics
Type IV method
Colour intensity (Type IV)
OIV-MA-BS-26 Measurement of colour intensity
Type IV method
- Principle
Colour intensity is determined by measuring the absorbance at 445 nm for an optical length of 1 cm thick (for traditional alcoholic beverages).
Determination of ethyl carbamate (Type IV)
OIV-MA-BS-25 Determination of ethyl carbamate
Type IV method
- Principle
The assay is performed by direct injection of the drink into a chromatograph coupled to a mass spectrometer operating under the principle of electron impact, in "Selected Ion Monitoring (SIM)” acquisition mode.
pH (Type IV)
OIV-MA-BS-13 Determination of pH
Type IV method
Determination of total dry extract by the usual calculation method (Type IV)
OIV-MA-BS-10 Determination of total dry extract usual method by calculation
Type IV method
- Principle
OIV-MA-BS-15 Anethole. Gas chromatographic determination of trans anethole in spirit drinks of viti-vinicultural origin (Type II)
Method OIV-MA-BS-15 : R2009
Type II method
Anethole. Gas chromatography determination of trans-anethole in spirit drinks of viti-vinicultural origin
(OIV/OENO 379/2009)
1. Scope
This method is suitable for the determination of trans-anethole in aniseed-flavoured spirit drinks using capillary gas chromatography.
Density (Type IV)
OIV-MA-BS-06 Density of alcohols and alcoholic beverages method for determining electronic densimetry (principle based on measuring the period of oscillation)
Type IV method
Determination of the distribution of deuterium in ethanol of spirit drinks of vitivinicultural origin by application of nuclear magnetic resonance of deuterium (SNIF NMR/RMN FINS) (Type I)
OIV-MA-BS-23 Determination of the distribution of deuterium in ethanol of spirit drinks of vitivinicultural origin by application of nuclear magnetic resonance of deuterium (SNIF-NMR/RMN-FINS[1])
Type I method
DETERMINATION BY ISOTOPE RATIO MASS SPECTOMETRY OF THE 13C/12C RATIO OF WINE ETHANOL OF SPIRIT DRINKS OF VITIVINICULTURAL ORIGIN. (Type II)
OIV-MA-BS-22 Determination by isotope ratio mass spectrometry of the 13C/12C ratio of wine ethanol of spirit drinks of viti-vinicultural origin
Type II method