Risk-based Decision-making Informed by Analysis of an Early Nineteenth-century Manuscript Containing Smalt in Studies in conservation, Vol.70 N°7-8(2025; October-November) (2025-10-01)  

Public ISBD [article]  inStudies in conservation > Vol.70 N°7-8(2025; October-November) (2025-10-01) . - P. 675-685 Titre : Risk-based Decision-making Informed by Analysis of an Early Nineteenth-century Manuscript Containing Smalt Type de document : texte imprimé Année de publication : 2025 Article en page(s) : P. 675-685 Langues : Anglais (eng) Catégories : Agents de blanchiment -- Toxicologie Arsenic -- Toxicologie Fourier, Spectroscopie infrarouge à transformée de Manuscrits musicaux -- Canada -- 19e siècle -- Conservation et restauration Oxydes de cobalt Patrimoine écrit -- Conservation et restauration -- Évaluation du risque -- 21e siècle Pigments -- Toxicologie Spectroscopie de fluorescence Spectroscopie des rayons X Spectroscopie Raman Index. décimale : 7.025 Dommages. Conservation. Protection Résumé : This paper reviews a collaborative examination and analysis of an early nineteenth-century music manuscript at the Canadian Conservation Institute. Collaboration between conservation scientists and conservators helped process scientific information, hazards, and treatment decisions to complete the arc of planning, treatment execution, and future care recommendations for the client. An unexpected result during the initial analysis of the pigments flagged the presence of arsenic on the painted and unpainted areas of the textblock. Initial hypotheses were that it could have derived from an application of pesticide on the binding or that it was part of the papermaking process. To characterize the nature of the arsenic more fully and to attempt to understand the level of risk during handling, further analysis was carried out. Through the analysis, it was determined that the source of arsenic in the manuscript is smalt – a blue glassy colourant, added to the paper during manufacture to make it appear whiter; there was no indication of an arsenical pesticide found. This case study provoked interesting discussions regarding the contextualizing of risk and analysis results when working with an unexpected finding of potential hazards, both during the execution of a conservation treatment, and in recommending care during handling and storage. En ligne : https://www.tandfonline.com/doi/full/10.1080/00393630.2025.2469475 [article] Risk-based Decision-making Informed by Analysis of an Early Nineteenth-century Manuscript Containing Smalt [texte imprimé] . - 2025 . - P. 675-685. Langues : Anglais (eng) in Studies in conservation > Vol.70 N°7-8(2025; October-November) (2025-10-01) . - P. 675-685 Catégories : Agents de blanchiment -- Toxicologie Arsenic -- Toxicologie Fourier, Spectroscopie infrarouge à transformée de Manuscrits musicaux -- Canada -- 19e siècle -- Conservation et restauration Oxydes de cobalt Patrimoine écrit -- Conservation et restauration -- Évaluation du risque -- 21e siècle Pigments -- Toxicologie Spectroscopie de fluorescence Spectroscopie des rayons X Spectroscopie Raman Index. décimale : 7.025 Dommages. Conservation. Protection Résumé : This paper reviews a collaborative examination and analysis of an early nineteenth-century music manuscript at the Canadian Conservation Institute. Collaboration between conservation scientists and conservators helped process scientific information, hazards, and treatment decisions to complete the arc of planning, treatment execution, and future care recommendations for the client. An unexpected result during the initial analysis of the pigments flagged the presence of arsenic on the painted and unpainted areas of the textblock. Initial hypotheses were that it could have derived from an application of pesticide on the binding or that it was part of the papermaking process. To characterize the nature of the arsenic more fully and to attempt to understand the level of risk during handling, further analysis was carried out. Through the analysis, it was determined that the source of arsenic in the manuscript is smalt – a blue glassy colourant, added to the paper during manufacture to make it appear whiter; there was no indication of an arsenical pesticide found. This case study provoked interesting discussions regarding the contextualizing of risk and analysis results when working with an unexpected finding of potential hazards, both during the execution of a conservation treatment, and in recommending care during handling and storage. En ligne : https://www.tandfonline.com/doi/full/10.1080/00393630.2025.2469475

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