YHIP 2019 PArticipants Anna Micheluz Christina Elsässer Challenges and opportunities in assessing the effectiveness and harmfulness of storage conditions for three dimensional cellulose nitrate museum objects (click on titles to see abstracts) Anne Biber Colours of a Collection: Surveying museum objects on the colouring of historic plastics Anthi Maria Soulioti Under the radar: The Conservation of a 19th Century Plastic Stethoscope Artur Neves The plastics’ harbinger in Portugal: unveiling past production for celluloid’s preservation Cancy Chu Julianne Bell The PolyMuse Project: Challenges and Lessons in Australian Polymer Conservation Research Élia Roldão Contributions for the preservation of plastic negatives Eva Mariasole Angelin The fate of colours in the 20th-21st centuries: preserving organic colorants in plastic artefacts Ilaria Saccani Structures of air: PVC inflatable artifacts by Studio De Pas, D’Urbino, Lomazzi and Franco Mazzucchelli installations Laura Pagnin Multispectral Investigations for Characterizing UV-light Degradation of Modern Art Materials Maria Loerzel “The Transparent Figures” – History, Materials, Production and Active Conservation Salomé García Documenting art installations with plastic components in the collection of the Wifredo Lam Contemporary Art Center Sara Babo Conservation studies on poly(methyl methacrylate): understanding the influence of industrial and artistic production processes on the degradation of Portuguese artworks with acrylic sheet Sofia Nunes Cellulose acetate in works of art: exploring the causes of its degradation