In investigation of production technology and provenance studies of historical objects as well as to propose and develop strategies for restoring and conservation, it is necessary to get information about studied samples. This information is different according to the type and kind of materials of historical objects.
Today, identify and accurately determine the elemental composition and constituent material of given sample is one of this essential information that be able to measure using modern laboratory instruments In this paper, was presented some results was obtained in past few years from different historical and cultural objects using micro ion beam analysis in Van de Graaff laboratory of Nuclear Science and Technology Research Institute.
Investigation of Painted enameled potteries to determine the different pigments used in, determine the thickness and purity of the gold layer in gilded enameled potteries, determine the responsible elements to brightness of wall painting in a historical place, Investigate the causes of corrosion and degradation of an old manuscript, determine purity of Elymais bronze coins and determine the type of Iranian historical and ancient glasses are some studied objects that will be presented in this paper.
The results of these analysis will significantly help to investigate the production technology, to determine the authenticity of the samples and finally to use in restoration of these historical objects.

Recently risk assessment and management in cultural-historical collections is one of the important subjects in the field of preventive conservation research. Different methods and aspects of are used and studied in the field of risk assessment in archaeological sites and collections and significant results are achieved and published in last decades. One of the types of archaeological collections is metal collections that may be found in archaeological excavations. In this paper, application of risk assessment approach is investigated to estimate conservation condition in archaeological bronze collection. This approach is concentrated on occurrence of active corrosion (bronze disease) and factors influencing it during burial time and post-excavation period. Thus, the results of analyses based on an analytical system is considered that is performed previously (Metal-Environment-Corrosion system) including identification of soil environment, characterization of corrosion mechanism and their effect on conservation condition in bronze objects. For this purpose, two bronze collections are studied that are discovered from Haft Tappeh and Sangtarashan sites from Iran. The condition of two collections is assessed consisting of identification of risks and deterioration factors influencing bronze objects during excavation operation as well as post-excavation preservation and risk assessment based on occurrence of active corrosion in the collections. Finally, conservation condition and excavation procedure and preservation of the collections are estimated and analyzed based on the corrosion mechanism occurred in the objects and results of risk assessment in soil and museum environments.

The East Chia Sabz site is located at the bank of the Seymareh river in the middle of Zagros Mountain chain. The site is among the few collections of the Acramic Neolithic sites of eighth millenium BCE of Zagros which was archaeologically investigated during the rescue archaeological studies of the Seymareh dam. Numerous bullet-shaped core stones were unearhted during the archaeological excavation of the site, from which some were investigated using XRD analysis. According to the results, most of the lithic artifacts demonstrate a similar mineralogy and it seems that they had been provided from a local source. In this regard, the silisic cobbles of the Amiran Formation that are also available from the river beds could have been a significant source.

The dangers posed by O₃to historical properties and art works, as well as limited accessibility and inapplicable instrumental methods for measuring O₃concentrationhave made it much more necessary to use low tech and inexpensive methods for this purpose in almost all museum environments. On the other hand, elastomers are known as polymers with high reactivity to ozone and latex as a natural elastomer is the most sensitive one to this gaseous pollutant. Hence this polymer has been considered as an ozone dosimeter.
In this scientific investigation, in order to attain the ozone dosimeter, the effect of this gas on the latex strips prepared in artificial condition was studied. For this purpose an aging chamber equipped with ozone generator was used. Since the oxidation of latex strips can also occur as a result of UV radiations, in order to study and compare the process with Ozone gas, testing samples were aged using UV lamps of 254 and 366 nm wavelengths.  All the examinations were carried out at 24 ^oC and 40% RH. The aged and intact latex strips were studied by means of ATR-FT-IR and digital microscope.
The results demonstrate the diverse and discernible oxidizing effects of O₃ and UV radiations on latex. Furthermore, it is possible to estimate the concentration of ozone in the environment by the calibration of latex strips. The verification of the results obtained by latex dosimeters in museum environments was carried out by Ozone sensor over a day, confirming the results acquired.

Haj Saleh Bathhouse, located in the historical fabric of Saqqez city, dates back to the Zand period. Its entrance is situated in the city's traditional bazaar. The construction style of the building is Isfahani and features unique stucco decorations. One of the notable and significant stucco reliefs in the bathhouse is the hunting scene, which has undergone extensive deterioration. This relief consists of three layers: two lime-based layers and one paint layer.
In this study, through laboratory examination, the materials used in the stratigraphy of the relief were technically identified. Subsequently, the deterioration patterns affecting the artwork were analyzed. The conservation and restoration process of the hunting scene is also detailed: following mechanical and chemical cleaning, delaminated areas were consolidated using an injection method. A slurry made from dental gypsum combined with 5% Plextol in water was injected with the aid of a pillow (bladder) technique to reattach and strengthen the lifted layers.
The missing parts were reconstructed using a mixture of gypsum and 5% Plextol, followed by chromatic reintegration with watercolors to match the surrounding areas and faded pigments. Finally, the entire artwork underwent final consolidation using 5% Plextol solution.

Stucco work (gachbori) is one of the most prominent and sophisticated traditional arts of Iran, which has historically been executed using a variety of technical methods. Due to the inherent fragility of gypsum and the impact of both environmental and human factors that contribute to the deterioration of historic plasterworks, the conservation and restoration of these elements—particularly through the revival of forgotten or seldom-used techniques—are essential for preserving and transmitting cultural heritage to future generations.
One such technique is the creation of openwork stucco decorations, which are freestanding ornaments executed in a pierced style without a backing layer. This method is especially prevalent in the central regions of Iran, notably in the historic houses of Kashan, where lattice windows (rozans) filled with colored glass are a distinguishing feature. From a technical standpoint, the decorative work is carried out by applying gypsum over a temporary support; once the support is removed, the cut-out patterns are completed from the rear with stained glass.

This article presents a detailed account of the reconstruction and restoration process of one such gypsum lattice window in the Abbasi House of Kashan. Through a practical and field-based approach, the authors replicate and document the historical construction techniques and restoration steps involved in reviving this architectural ornament, offering insights into the craftsmanship and methodology behind these delicate works.