For the purpose of determining the fibre composition of textile products, the checks referred to in Article 18 shall be carried out in accordance with the methods set out in Annex VIII or with the harmonised standards to be introduced in that Annex.

In the determination of fibre compositions set out in Articles 7, 8 and 9, the items listed in Annex VII shall not be taken into account.

The fibre compositions set out in Articles 7, 8 and 9 shall be determined by applying to the anhydrous mass of each fibre the appropriate agreed allowance laid down in Annex IX, after having removed the items set out in Annex VII.

The laboratories responsible for the testing of textile mixtures for which there is no uniform method of analysis at Union level shall determine the fibre composition of such mixtures, indicating in the analysis report the result obtained, the method used and its degree of accuracy.