What is the ICS?

The ICS – the International Classification for Standards – is used for indexing standards, standardization documents, and drafts thereof. The ICS serves as a basis for classification of standards in international, European and national catalogues, databases, libraries and standards subscriptions. The ICS is a three-level hierarchical classification. It covers 40 fields of activity in standardization. These fields are subdivided into groups, marked by a two-digit field notation and a three-digit group notation. A group may be further divided into subgroups, e.g. 43.060.50.