Where Community analytical reference methods are not laid down for the detection and quantification of substances contained in a particular spirit drink, the following methods shall be used:
analytical methods which are validated to internationally recognised procedures and in particular meet the criteria set in the Annex to Directive 85/591/EEC;
analytical methods conforming to the recommended standards of the International Organisation for Standardisation (ISO);
analytical methods recognised by the General Assembly of the International Vine and Wine Office (OIV) and published by that Office;
in the absence of a method as indicated at (a), (b) or (c), by reason of its accuracy, repeatability and reproducibility:
an analytical method approved by the Member State concerned,
where necessary, any other suitable analytical method.