These tests are universally accepted in the North Sea countries and are recommended by the Ospar guidelines. Based on this test data, N-Spec 50 is now classified in Norway as yellow, which means that it is an acceptable chemical for use offshore (rating: green and yellow are accepted, red is to be replaced after a certain period of time and black is not allowed). Compared to other dispersants/solvents like xylene, diesel, and toluene, Brenntag's chemical is a preferred alternative thanks to the better environmental properties. The material, designed to penetrate and remove organic deposits, like paraffin and waxes in oil and gas applications, has already been successfully applied in cleaning crude oil and gas pipelines, flowlines, and gas-lift wells. An important advantage of the process is that it allows pipeline operators to clean their lines online, without interrupting operations, thereby eliminating downtime and loss of production. The N-SPEC chemical-cleaning method makes use of specially-formulated 'tensides' to emulsify pipeline sediments rather than scraping-out these residues with traditional mechanical devices. This technology has successfully removed paraffin, waxes, black powder, hydrates, scales, sand and metal scraps. The package offered includes a professional technical support team, cleaning chemicals, and a maintenance programme designed to meet the customer's specific needs.