OIV-MA-BS-26 Measurement of colour intensity

Type IV method

1. Principle

Colour intensity is determined by measuring the absorbance at 445 nm for an optical length of 1 cm thick (for traditional alcoholic beverages).

OIV-MA-BS-25 Determination of ethyl carbamate

Type IV method

1. 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.

OIV-MA-BS-13 Determination of pH

Type IV method

OIV-MA-BS-10 Determination of total dry extract usual method by calculation

Type IV method

1. Principle

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.

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

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

OIV-MA-BS-11 Determination of sugars in spirit drinks of viti-vinicultural origin

Type II method

Introduction

Spirit drinks of viti-vinicultural origin may be sweetened by various compounds, and in certain legislations the concentrations of sweetener are subject to minimum or maximum levels.

OIV-MA-BS-12 Determination of the acidities of spirit drinks of viti-vinicultural origin

Type II method

1. Scope

This method is suitable for the determination of the volatile, total, and fixed acidities of spirit drinks of viti-vinicultural origin.