For all articles that are used as personal protective equipment according to Regulation (EU) 2016/425, an individual link can be found on the primary packaging (inner box). Here, the respective declaration of conformity, the type certificate and, if available, further information (e.g. instructions for use) are made available. The 6-digit abbreviation consisting of numbers and letters is used to clearly assign the article to this information (Where can I find the link or the abbreviation?).