Vol.63 N°1-2(2018 ; January-February) - 2018-04-18 (Bulletin de Studies in conservation)  

Public ISBD [n° ou bulletin]  est un bulletin de Studies in conservation / Institut international de conservation des oeuvres historiques et artistiques   Titre : Vol.63 N°1-2(2018 ; January-February) - 2018-04-18 Type de document : texte imprimé Année de publication : 2018 Note générale : Accès à plus de documentation via le compte bibliothèque : demander les accès aux bibliothécaires Versions numériques accessibles à la bibliothèque uniquement : demander les accès aux bibliothécaires Langues : Anglais (eng) Catégories : Bois - Conservation Bois -- Détérioration Bronzes antiques -- Conservation et restauration Chromatographie en phase gazeuse Colorants Corrosion -- Lutte contre Dorure -- Conservation et restauration Gommes et résines Gypse -- Conservation et restauration Insectes -- Lutte contre Matériaux -- Effets de la lumière Microondes Nanogels Papier - Conservation et restauration Peinture -- 20e siècle -- Conservation et restauration Peinture -- 20e siècle -- Histoire et critique Peinture sur bois -- Conservation et restauration Picasso, Pablo (1881-1973). La famille Soler Pigments -- Identification Produits chimiques -- Effets physiologiques Spectroscopie Raman Textiles et tissus -- Conservation et restauration Index. décimale : 7.025 Dommages. Conservation. Protection Note de contenu : Content : Defeyt, C., P. Walter, H. Rousselière, P. Vandenabeele, B. Vekemans, L. Samain, and D. Strivay, "New Insights on Picasso’s Blue Period Painting La famille Soler", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 24-35, 2018. Muros, V., and D. A. Scott, "The occurrence of brochantite on archaeological bronzes: a case study from Lofkënd, Albania", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 113-125, 2018. Smith, C. A., R. A. Paterson, B. J. Lowe, and R. Te Kanawa, "Consolidation of Black-dyed Māori Textile Artefacts: Evaluating the Efficacy of Sodium Alginate", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 139-154, 2018. Cardoso, I. Pombo, and E. Pye, "Gessoes in Portuguese Baroque Gilding Grounds: Part 2: Analytical Study of Historical Samples and Archaeological Reconstructions", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 72-96, 2018. Poulin, J., "A New Methodology for the Characterisation of Natural Dyes on Museum Objects Using Gas Chromatography–Mass Spectrometry", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 36-61, 2018. Patrascu, M., M. Radoiu, and M. Pruna, "Microwave Treatment for Pest Control: Coleoptera Insects in Wooden Objects", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 155-162, 2018. Scott, D. A., "The Replication of Veronese’s Wedding at Cana and of Duchamp’s Bicycle Wheel: Two Iconic Works as Their Surrogates", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 127-138, 2018. Lee, N., and M. Fitski, "Manufacture and Date of a Goryeo dynasty Sutra Box with Mother-of-pearl Inlaid Decoration at the Rijksmuseum, Amsterdam", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 163-170, 2018. Chidichimo, G., F. Dalena, A. Rizza, and A. Beneduci, "Insect-Infested Wood Remediation by Microwave Heating and Its Effects on Wood Dehydration: A Case Study of Hylotrupes bajulus Larva", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 97-103, 2018. Ekelund, S.., P.. Van Duin, A.. Jorissen, B.. Ankersmit, and R.. M. Groves, "A Method for Studying Climate-related Changes in the Condition of Decorated Wooden Panels", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 62-71, 2018. Bayerova, T., "Buddhist Wall Paintings at Nako Monastery, North India: Changing of the Technology Throughout Centuries", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 171-188, 2018. Villmann, B., and C. Weickhardt, "Wavelength Dependence of Light Induced Changes in Reflectance Spectra of Selected Dyes and Pigments", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 104-112, 2018. Korenberg, C., M. Keable, J. Phippard, and A. Doyle, "Refinements Introduced in the Oddy Test Methodology", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 2-12, 2018. Di Vito, M., M. Grazia Bellardi, P. Colaizzi, D. Ruggiero, C. Mazzuca, L. Micheli, S. Sotgiu, S. Iannuccelli, M. Michelozzi, F. Mondello, et al., "Hydrolates and Gellan: An Eco-innovative Synergy for Safe Cleaning of Paper Artworks", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 13-23, 2018. Reedy, C. L., and J. H. Townsend, "Editorial", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 1-1, 2018. En ligne : https://www.iiconservation.org/publications/sic [n° ou bulletin]  est un bulletin de Studies in conservation / Institut international de conservation des oeuvres historiques et artistiques   Vol.63 N°1-2(2018 ; January-February) - 2018-04-18 [texte imprimé] . - 2018. Accès à plus de documentation via le compte bibliothèque : demander les accès aux bibliothécaires Versions numériques accessibles à la bibliothèque uniquement : demander les accès aux bibliothécaires Langues : Anglais (eng) Catégories : Bois - Conservation Bois -- Détérioration Bronzes antiques -- Conservation et restauration Chromatographie en phase gazeuse Colorants Corrosion -- Lutte contre Dorure -- Conservation et restauration Gommes et résines Gypse -- Conservation et restauration Insectes -- Lutte contre Matériaux -- Effets de la lumière Microondes Nanogels Papier - Conservation et restauration Peinture -- 20e siècle -- Conservation et restauration Peinture -- 20e siècle -- Histoire et critique Peinture sur bois -- Conservation et restauration Picasso, Pablo (1881-1973). La famille Soler Pigments -- Identification Produits chimiques -- Effets physiologiques Spectroscopie Raman Textiles et tissus -- Conservation et restauration Index. décimale : 7.025 Dommages. Conservation. Protection Note de contenu : Content : Defeyt, C., P. Walter, H. Rousselière, P. Vandenabeele, B. Vekemans, L. Samain, and D. Strivay, "New Insights on Picasso’s Blue Period Painting La famille Soler", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 24-35, 2018. Muros, V., and D. A. Scott, "The occurrence of brochantite on archaeological bronzes: a case study from Lofkënd, Albania", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 113-125, 2018. Smith, C. A., R. A. Paterson, B. J. Lowe, and R. Te Kanawa, "Consolidation of Black-dyed Māori Textile Artefacts: Evaluating the Efficacy of Sodium Alginate", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 139-154, 2018. Cardoso, I. Pombo, and E. Pye, "Gessoes in Portuguese Baroque Gilding Grounds: Part 2: Analytical Study of Historical Samples and Archaeological Reconstructions", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 72-96, 2018. Poulin, J., "A New Methodology for the Characterisation of Natural Dyes on Museum Objects Using Gas Chromatography–Mass Spectrometry", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 36-61, 2018. Patrascu, M., M. Radoiu, and M. Pruna, "Microwave Treatment for Pest Control: Coleoptera Insects in Wooden Objects", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 155-162, 2018. Scott, D. A., "The Replication of Veronese’s Wedding at Cana and of Duchamp’s Bicycle Wheel: Two Iconic Works as Their Surrogates", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 127-138, 2018. Lee, N., and M. Fitski, "Manufacture and Date of a Goryeo dynasty Sutra Box with Mother-of-pearl Inlaid Decoration at the Rijksmuseum, Amsterdam", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 163-170, 2018. Chidichimo, G., F. Dalena, A. Rizza, and A. Beneduci, "Insect-Infested Wood Remediation by Microwave Heating and Its Effects on Wood Dehydration: A Case Study of Hylotrupes bajulus Larva", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 97-103, 2018. Ekelund, S.., P.. Van Duin, A.. Jorissen, B.. Ankersmit, and R.. M. Groves, "A Method for Studying Climate-related Changes in the Condition of Decorated Wooden Panels", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 62-71, 2018. Bayerova, T., "Buddhist Wall Paintings at Nako Monastery, North India: Changing of the Technology Throughout Centuries", Studies in Conservation, vol. 63, no. 3: Routledge, pp. 171-188, 2018. Villmann, B., and C. Weickhardt, "Wavelength Dependence of Light Induced Changes in Reflectance Spectra of Selected Dyes and Pigments", Studies in Conservation, vol. 63, no. 2: Routledge, pp. 104-112, 2018. Korenberg, C., M. Keable, J. Phippard, and A. Doyle, "Refinements Introduced in the Oddy Test Methodology", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 2-12, 2018. Di Vito, M., M. Grazia Bellardi, P. Colaizzi, D. Ruggiero, C. Mazzuca, L. Micheli, S. Sotgiu, S. Iannuccelli, M. Michelozzi, F. Mondello, et al., "Hydrolates and Gellan: An Eco-innovative Synergy for Safe Cleaning of Paper Artworks", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 13-23, 2018. Reedy, C. L., and J. H. Townsend, "Editorial", Studies in Conservation, vol. 63, no. 1: Routledge, pp. 1-1, 2018. En ligne : https://www.iiconservation.org/publications/sic

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A Comparative Study of Invasive and Micro-Invasive Analytical Methods for the Detection and Identification of Historically Applied Pesticides to Archival Records 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. 647-658 Titre : A Comparative Study of Invasive and Micro-Invasive Analytical Methods for the Detection and Identification of Historically Applied Pesticides to Archival Records Type de document : texte imprimé Année de publication : 2025 Article en page(s) : P. 647-658 Langues : Anglais (eng) Catégories : Archives -- Conservation et restauration -- Canada Archives -- Conservation et restauration -- Grande-Bretagne Chromatographie en phase gazeuse Conservation et restauration -- Échantillonnage Conservation et restauration -- Méthode comparative Pesticides -- Identification Pesticides -- Recherches Spectrométrie de masse Index. décimale : 7.025 Dommages. Conservation. Protection Résumé : The National Archives UK has previously carried out invasive sampling and analysis on records in its collections which were found to contain various organochlorine pesticide (OCP) residues on all tested items regardless of format or period of creation. This study presented a rare opportunity to carry out comparative research of invasive and swab sampling methods on original, historic materials for the detection and identification of hazardous substances. Swabbing was carried out on the same records that had been invasively sampled to determine the sensitivity and applicability of this method relative to invasive sampling as well as the likelihood of pesticide transfer during handling of the records. Analysis by gas chromatography -mass spectrometry (GC-MS) demonstrated that the presence of a number of pesticides could effectively be identified using a dry swabbing method, including pentachlorophenol, ortho-phenylphenol, and the breakdown products of DDT and methoxychlor. The pesticides identified in invasive and swab testing from the same book were sometimes different, highlighting that the method of sampling will affect the results. Our results from this case study provide a snapshot, comparing the concentrations of hazardous organic pesticides detected in the invasive tests versus those found in swabs, and compare these quantities to human health-based screening concentrations. We argue that a dry swabbing programme is a good option in archival settings for screening for a comprehensive suite of pesticides, complementing existing occupational health approaches that take into account a whole collection, and can provide information to facilitate access and handling of historical records. [article] A Comparative Study of Invasive and Micro-Invasive Analytical Methods for the Detection and Identification of Historically Applied Pesticides to Archival Records [texte imprimé] . - 2025 . - P. 647-658. Langues : Anglais (eng) in Studies in conservation > Vol.70 N°7-8(2025; October-November) (2025-10-01) . - P. 647-658 Catégories : Archives -- Conservation et restauration -- Canada Archives -- Conservation et restauration -- Grande-Bretagne Chromatographie en phase gazeuse Conservation et restauration -- Échantillonnage Conservation et restauration -- Méthode comparative Pesticides -- Identification Pesticides -- Recherches Spectrométrie de masse Index. décimale : 7.025 Dommages. Conservation. Protection Résumé : The National Archives UK has previously carried out invasive sampling and analysis on records in its collections which were found to contain various organochlorine pesticide (OCP) residues on all tested items regardless of format or period of creation. This study presented a rare opportunity to carry out comparative research of invasive and swab sampling methods on original, historic materials for the detection and identification of hazardous substances. Swabbing was carried out on the same records that had been invasively sampled to determine the sensitivity and applicability of this method relative to invasive sampling as well as the likelihood of pesticide transfer during handling of the records. Analysis by gas chromatography -mass spectrometry (GC-MS) demonstrated that the presence of a number of pesticides could effectively be identified using a dry swabbing method, including pentachlorophenol, ortho-phenylphenol, and the breakdown products of DDT and methoxychlor. The pesticides identified in invasive and swab testing from the same book were sometimes different, highlighting that the method of sampling will affect the results. Our results from this case study provide a snapshot, comparing the concentrations of hazardous organic pesticides detected in the invasive tests versus those found in swabs, and compare these quantities to human health-based screening concentrations. We argue that a dry swabbing programme is a good option in archival settings for screening for a comprehensive suite of pesticides, complementing existing occupational health approaches that take into account a whole collection, and can provide information to facilitate access and handling of historical records.

Evaluation of Degradation of Japanese Hanging Scrolls Using Relative Peak Area of Volatile Organic Compounds in Studies in conservation, Vol.68 N°3-4(2023; April-May) (2023-04-03)

Public ISBD [article]  inStudies in conservation > Vol.68 N°3-4(2023; April-May) (2023-04-03) Titre : Evaluation of Degradation of Japanese Hanging Scrolls Using Relative Peak Area of Volatile Organic Compounds Type de document : texte imprimé Année de publication : 2023 Langues : Anglais (eng) Catégories : Chromatographie en phase gazeuse Composés organiques volatils -- Analyse Essais accélérés (technologie) Microextraction en phase solide Papier -- Japon -- Détérioration Peinture sur rouleau -- Japon -- Conservation et restauration Peinture sur rouleau -- Japon -- Détérioration -- Méthode comparative Index. décimale : 7.025 Dommages. Conservation. Protection Résumé : ABSTRACT Volatile organic compounds (VOCs) generated from naturally aged Japanese hanging scrolls and their model samples were measured using solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) to clarify the effect of different painting papers and raw materials on the degradation state of hanging scrolls. VOC-based degradation markers were identified and their applicability was considered for degradation evaluations of actual Japanese hanging scrolls. The relative peak areas of different VOC groups were calculated by normalising their peak areas to the total peak area of long-chain hydrocarbons. When a painting paper was immersed in a CuSO4・5H2O solution, or coated with an alum solution, the relative peak areas of furfural and carboxylic acids increased after accelerated ageing, while these relative peak areas decreased when animal glue was applied, indicating that animal glue inhibited the generation of VOCs. When the painting paper containing Cu2+ was stacked with lining paper, furfural and carboxylic acids migrated into the lining paper with ageing. Animal glue coated on the painting paper retarded this migration into the lining paper. For the lining paper coated with wheat starch paste, the relative peak areas of furfural, carboxylic acids, and aliphatic aldehydes did not change significantly with ageing, indicating that wheat starch paste did not contribute to paper degradation, although these relative peak areas increased when aged wheat starch paste was applied. These results indicate that the targeted VOCs are valid degradation markers of Japanese hanging scrolls. [article] Evaluation of Degradation of Japanese Hanging Scrolls Using Relative Peak Area of Volatile Organic Compounds [texte imprimé] . - 2023. Langues : Anglais (eng) in Studies in conservation > Vol.68 N°3-4(2023; April-May) (2023-04-03) Catégories : Chromatographie en phase gazeuse Composés organiques volatils -- Analyse Essais accélérés (technologie) Microextraction en phase solide Papier -- Japon -- Détérioration Peinture sur rouleau -- Japon -- Conservation et restauration Peinture sur rouleau -- Japon -- Détérioration -- Méthode comparative Index. décimale : 7.025 Dommages. Conservation. Protection Résumé : ABSTRACT Volatile organic compounds (VOCs) generated from naturally aged Japanese hanging scrolls and their model samples were measured using solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) to clarify the effect of different painting papers and raw materials on the degradation state of hanging scrolls. VOC-based degradation markers were identified and their applicability was considered for degradation evaluations of actual Japanese hanging scrolls. The relative peak areas of different VOC groups were calculated by normalising their peak areas to the total peak area of long-chain hydrocarbons. When a painting paper was immersed in a CuSO4・5H2O solution, or coated with an alum solution, the relative peak areas of furfural and carboxylic acids increased after accelerated ageing, while these relative peak areas decreased when animal glue was applied, indicating that animal glue inhibited the generation of VOCs. When the painting paper containing Cu2+ was stacked with lining paper, furfural and carboxylic acids migrated into the lining paper with ageing. Animal glue coated on the painting paper retarded this migration into the lining paper. For the lining paper coated with wheat starch paste, the relative peak areas of furfural, carboxylic acids, and aliphatic aldehydes did not change significantly with ageing, indicating that wheat starch paste did not contribute to paper degradation, although these relative peak areas increased when aged wheat starch paste was applied. These results indicate that the targeted VOCs are valid degradation markers of Japanese hanging scrolls.

Instruments scientifiques : conservation-restauration d'un théodolite de la fin du XIXe siècle / Anne-Marie Geffroy in Conservation restauration des biens culturels (CRBC), no.23(2005) (2005-12-01)

Public ISBD [article]  inConservation restauration des biens culturels (CRBC) > no.23(2005) (2005-12-01) . - P. 57-61 Titre : Instruments scientifiques : conservation-restauration d'un théodolite de la fin du XIXe siècle : études de cas Type de document : texte imprimé Auteurs : Anne-Marie Geffroy, Auteur Année de publication : 2005 Article en page(s) : P. 57-61 Langues : Français (fre) Catégories : Alliages -- 19e siècle -- Analyse Chromatographie en phase gazeuse Diffractomètres de rayons X Métaux -- Analyse Métaux -- Corrosion Microscopie électronique à balayage Musée des arts et métiers (Paris) Spectrométrie de masse Spectroscopie de fluorescence Théodolites -- 19e siècle -- Dessins et plans Topographie -- Instruments -- 19e siècle -- Conservation et restauration Index. décimale : 7.025 Dommages. Conservation. Protection [article] Instruments scientifiques : conservation-restauration d'un théodolite de la fin du XIXe siècle : études de cas [texte imprimé] / Anne-Marie Geffroy, Auteur . - 2005 . - P. 57-61. Langues : Français (fre) in Conservation restauration des biens culturels (CRBC) > no.23(2005) (2005-12-01) . - P. 57-61 Catégories : Alliages -- 19e siècle -- Analyse Chromatographie en phase gazeuse Diffractomètres de rayons X Métaux -- Analyse Métaux -- Corrosion Microscopie électronique à balayage Musée des arts et métiers (Paris) Spectrométrie de masse Spectroscopie de fluorescence Théodolites -- 19e siècle -- Dessins et plans Topographie -- Instruments -- 19e siècle -- Conservation et restauration Index. décimale : 7.025 Dommages. Conservation. Protection

Preventive Conservation, Treatment, and Technical Study of Plasticized Poly(vinyl chloride) Multiples by Joseph Beuys / Nicole Ledoux in Studies in conservation, Vol.68 N°3-4(2023; April-May) (2023-04-03)  

Public ISBD [article]  inStudies in conservation > Vol.68 N°3-4(2023; April-May) (2023-04-03) . - Pages 343-356 Titre : Preventive Conservation, Treatment, and Technical Study of Plasticized Poly(vinyl chloride) Multiples by Joseph Beuys Type de document : texte imprimé Auteurs : Nicole Ledoux, Auteur Année de publication : 2023 Article en page(s) : Pages 343-356 Langues : Anglais (eng) Catégories : Beuys, Joseph (1921-1986) Chambres froides Chlorure de polyvinyle Chromatographie en phase gazeuse Matières plastiques -- Dans l'art -- Analyse Matières plastiques -- Dans l'art -- Conservation et restauration Matières plastiques -- Dans l'art -- Séchage Microscopie électronique à balayage Plastifiants Spectrométrie de masse Spectroscopie des rayons X Index. décimale : 7.025 Dommages. Conservation. Protection Résumé : ABSTRACT Works of art made of plasticized poly(vinyl chloride) (PVC) present unique and pressing conservation challenges. Due to inherently unstable formulations, PVC can deteriorate rapidly, producing dramatic alterations that were unanticipated by artists and collectors. This is the case for three works by Joseph Beuys with PVC components in the Harvard Art Museums’ collection: Phosphorus-Cross Sled, Postcards 1968–1974, and Stamp Sculpture. Over the course of the last two decades, exudation of liquid plasticizer and progressive discoloration of the PVC was observed and appeared to be worsening with time. This paper presents the results of research undertaken since 2012 to develop storage and display guidelines that will slow the deterioration and improve the accessibility of these works. The three objects under study are all multiples, meaning that they were released in editions, which are now dispersed across numerous museums and private collections. Analysis using gas chromatography-mass spectrometry (GC-MS, with and without pyrolysis) and scanning electron microscopy with energy dispersive X-ray (SEM-EDX) spectroscopy has identified variability in the PVC formulation and exudate across different multiples, suggesting that they may derive from different manufacturing batches. Experimental testing of PVC material from Beuys’s studio has shown that sealed Mylar enclosures and storage at temperatures between 4.4 and 12.8 °C are effective in slowing the migration of plasticizer to the surface. After implementing these changes to the housing and storage of the PVC postcard from Postcards 1968–1974, reabsorption of plasticizer exudate was observed, demonstrating that reversal of the plasticizer migration is possible under these conditions. En ligne : https://www.tandfonline.com/doi/full/10.1080/00393630.2022.2033520 [article] Preventive Conservation, Treatment, and Technical Study of Plasticized Poly(vinyl chloride) Multiples by Joseph Beuys [texte imprimé] / Nicole Ledoux, Auteur . - 2023 . - Pages 343-356. Langues : Anglais (eng) in Studies in conservation > Vol.68 N°3-4(2023; April-May) (2023-04-03) . - Pages 343-356 Catégories : Beuys, Joseph (1921-1986) Chambres froides Chlorure de polyvinyle Chromatographie en phase gazeuse Matières plastiques -- Dans l'art -- Analyse Matières plastiques -- Dans l'art -- Conservation et restauration Matières plastiques -- Dans l'art -- Séchage Microscopie électronique à balayage Plastifiants Spectrométrie de masse Spectroscopie des rayons X Index. décimale : 7.025 Dommages. Conservation. Protection Résumé : ABSTRACT Works of art made of plasticized poly(vinyl chloride) (PVC) present unique and pressing conservation challenges. Due to inherently unstable formulations, PVC can deteriorate rapidly, producing dramatic alterations that were unanticipated by artists and collectors. This is the case for three works by Joseph Beuys with PVC components in the Harvard Art Museums’ collection: Phosphorus-Cross Sled, Postcards 1968–1974, and Stamp Sculpture. Over the course of the last two decades, exudation of liquid plasticizer and progressive discoloration of the PVC was observed and appeared to be worsening with time. This paper presents the results of research undertaken since 2012 to develop storage and display guidelines that will slow the deterioration and improve the accessibility of these works. The three objects under study are all multiples, meaning that they were released in editions, which are now dispersed across numerous museums and private collections. Analysis using gas chromatography-mass spectrometry (GC-MS, with and without pyrolysis) and scanning electron microscopy with energy dispersive X-ray (SEM-EDX) spectroscopy has identified variability in the PVC formulation and exudate across different multiples, suggesting that they may derive from different manufacturing batches. Experimental testing of PVC material from Beuys’s studio has shown that sealed Mylar enclosures and storage at temperatures between 4.4 and 12.8 °C are effective in slowing the migration of plasticizer to the surface. After implementing these changes to the housing and storage of the PVC postcard from Postcards 1968–1974, reabsorption of plasticizer exudate was observed, demonstrating that reversal of the plasticizer migration is possible under these conditions. En ligne : https://www.tandfonline.com/doi/full/10.1080/00393630.2022.2033520

The Technical Analysis and Conservation of John La Farge’s Newport Congregational Church Mural Decorations (1880) in Newport, Rhode Island in Studies in conservation, Vol.68 N°1-2(2023; January-February) (2023-01-01)

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