Method description – assessment of road marking materials used in contracts: Nordic certification system for road marking materials

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Trond Cato Johansen

A Nordic certification system for road marking materials was introduced in 2015. In the first stage, the certification system applies to the countries of Denmark, Norway and Sweden. In these countries, a documented product approval will be required in order to use a road marking material on roads managed by the national road authorities. Product approval will be based on monitored and documented performance measurements of material samples applied on test fields on public roads.

In order to be able to assess whether the (approved) road marking materials that are specified in contracts with a national road authority correspond to the materials that are applied on the roads, an assessment system will be introduced. The present report describes this assessment system.

The assessment system prescribes that material samples shall be taken when road marking materials are applied on the roads. A selection of the samples will then be sent to an accredited laboratory for analysis. The report describes how the material samples are selected, collected and analysed, and how the result is reported. It also describes the contractor’s responsibilities related to sample collection and the required competences of the assessment organization.

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