Translations:Het veiligstellen van films en bijhorende magneetbanden die zijn aangetast door het azijnsyndroom bij Opera Ballet Vlaanderen/13/en

3. A third way of finding out if films and magnetic tapes have started to decay as a result of vinegar syndrome is to test them using A-D strips. A-D strips are dye-coated paper strips which can be used to detect vinegar syndrome in collections and assess how advanced it is. The paper strips need to be placed in a sealed can, bag, box or locker together with the films, magnetic tapes or photographic negatives/slides, where they will change colour according to the acid gas produced by the decaying acetate base.