ISCS title


Basilica of Sagrada FamiliaMetropolitan Cathedral Basilica of Barcelona, Spain,
during restoration in 2006.


During the period 2008-2012, work on other translations of  the glossary continued and the German and Czech versions were published. ISCS supported several conferences including the 7th International Conference on Science and Technology in Archaeology and Conservation & the CIPA Stone Workshop in Amman and Petra, Jordan (2010) and the Jardins de Pierres conference in Paris, France (2011). During this period the Board comprised Stefan Simon (Germany) as President, Tamara Anson-Cartwright (Canada) as Vice President, Jean-Marc Vallet (France) as General Secretary, and Andrew McMillan (UK) as Treasurer.

During the period 2006-2008, the group focused on the completion of an English-French version of the Illustrated glossary on stone deterioration patterns. A printed version of the book was launched in September 2008, during the ICOMOS General Assembly. The book has received a very warm welcome and is continuously downloaded from ICOMOS International website (more than 70 000 downloads by January 2010). During that period, subgroups in Germany and Spain began to translate the glossary into German and Spanish. In September 2008, The group produced the Torun Guidelines for conferences in the field of stone conservation, which consist in a set of recommendations for rising up the scientific level, reliability and dissemination of conferences on stone conservation. The board during this triennum was constituted of Véronique Vergès-Belmin (France) as President, Tamara Anson-Cartwright (Canada) as Vice President, and Jean-Marc Vallet (France) as General Secretary.

At the turn of the century, the Laboratoire de Recherche des Monuments Historiques (Champs sur Marne, france) gave a new impulse to the group, leading to the adoption of official statutes in 2001. ISCS was composed of voting and associated members representing national committees of ICOMOS. Meetings in full session were held twice a year and were conducted in English. ISCS aims at facilitating the publication, dissemination and presentation of state of the art reviews on pre-identified issues. Simplification and demystification of scientific information for practitioners are also part of the main goals of the group. Between 2001 and 2005, the group focused on the completion and publication, via its website, of a multilingual and illustrated glossary of stone deterioration patterns. There were 3 officers forming the ISCS Bureau, elected from the voting members. Isabelle Pallot-Frossard (France) as President, Tadaretu Nishiura (Japan) as Vice President, and Véronique Vergès-Belmin (France) as General Secretary. In studies on stone deterioration and conservation, which definitely need a multidisciplinary approach, one of the major difficulties encountered is the lack of a common language. Terminological confusions lead to major communication problems between scientists, conservators and practitioners. In this context, It was considered as being of primary importance to set up a common language, and the glossary the group has worked on is a first step towards achieving this goal. If degradation patterns can be shown, named and described, then they can be recognised and compared with similar ones in a more accurate way in further investigations. This illustrated glossary thus constitutes an important tool for scientific discussions on decay phenomena and processes. It is also be an excellent basis for tutorials on stone deterioration. The ISCS glossary is based on the careful examination of pre-existing glossaries of English terms. It does not aim to replace these glossaries, often set up originally in a language other than English, and for most of them very well done. More information on the methodology and results of the working group’s efforts on the ICOMOS-ISCS glossary on stone deterioration patterns can be downloaded.

After Marc Mamillan retired, the group entered a 10 years of dormancy.

From 1967 to 1990, under the leadership of Marc Mamillan, ISCS performed a tremendous amount of work. The most well known product of the committee is a compilation of tests recommended to measure the deterioration of stone and to assess the effectiveness of treatment methods, published both in French and English in the Rilem journal Matériaux et Constructions. (RILEM Commission 25-PEM 1980). The following text has been written by Marc Mamillan in the beginning of the nineties, when he retired from his function of ICOMOS ISC president. The text is written in French, and has become now a part of the history of the stone conservation field, as it relates how things were structured and which institutions participated as pioneers to these very first steps.