The article deals with the general characteristics of paper as the carrier of written
cultural heritage, as well as the basic factors causing the ageing of paper, and the
written information it carries, which influence its durability and permanence. The
author also looks into the slandardisation of durable sorts of paper in Slovenia and
abroad and recent proposals for the adoption of technical regulations and the
corresponding legal norms governing the use of durable sorts of paper as carriers of
information.