The structure of archeology museums is based on historical objects, in some cases making the need to relocation museum items a priority in museum operations. In such cases, the packing of museum objects becomes one of the most important parts of this moving process. The diversity of historical objects in terms of material, delicacy, form, aesthetic condition, size, weight, etc. significantly influences the of packaging methods. In addition to determining the appropriate packaging method, , the selection of materials and adherence to ergonomic principles and transportation standards are of utmost importance The main steps involved in this process include: matching museum objects with their recorded information before and after packing, photographing and documenting the artifacts, and selecting the most suitable packaging methods. For optimal packaging, it is essential to use high-quality materials as well as skilled personnel. Furthermore, environmental conditions such as tranquility, security, and cleanliness. should be taken into consideration for optimal packaging.

Microbial colonization of cultural heritage objects is inevitable. Microorganisms cause physical, chemical, and aesthetic alteration in valuable works of art, leading to the loss of both financial and cultural value. To prevent and control microbial colonization and their growths, physical, chemical, and biological methods are used. However, physicochemical methods are often ineffective on treated works of art, and can be dangerous for people involved in the conservation process. Due to inherent characteristics, chemical compounds and biocides, they are hazardous for humans, animals, and the environment. Given the significant weaknesses of these conventional methods, new approaches are continuously being developed to reduce the negative impact of deteriogenic microorganisms. These new approaches are environmentally friendly, safe, low-cost and low-risk. However, more research is needed to monitor the safety and effectiveness of these approaches. The lack of simple, reliable and standard measurements remains a limitation in the selection of
effective treatments. Field experiments are necessary and useful for evaluating the effectiveness of these methods: however, their design and implementation face several challenges. Therefore, researchers are seeking to develop methods to investigate how these new approaches work. Laboratory model systems are tools for testing the efficacy of antimicrobial compounds before field application on art works. In this study, we will first review the types of biological control methods, and then introduce the new and environmentally friendly approaches, that have been developed in this field. Finally, we will discuss methods of testing the effectiveness of new strategies using laboratory model systems.

Biological contamination of paper artifacts is a significant threat, causing not only damage to the paper itself but also posing health risks to conservators and restorers who are in close contact with them. Therefore, identifying the type of contamination is crucial for effective preservation and restoration. This article focuses on identifying biological contamination in a collection of paper artifacts from the Imamzadeh Mohammad in Tafresh, Iran. Preliminary examinations revealed evidence of biological contamination, including stains resulting from biological activity. These stains are a consequence of biodeterioration, leading to a reduction in the structural and artistic quality of the artifacts. To investigate the biological contamination, samples were taken from areas suspected of contamination and cultured on Sabouraud dextrose agar (for fungal contamination) and nutrient agar (for bacterial contamination). After incubation, the grown colonies were examined and identified. The results of the identification of isolated fungal and bacterial showed contamination with various fungi, including Penicillium, Aspergillus, Cladosporium, and yeasts, as well as bacteria belonging to the Actinomycetes and Bacillus genus.

Fungal contamination and increased acidity are the most fundamental factors contributing to the erosion and destruction of historical manuscripts, including the manuscript of the Bible from the year 1150 AD. This work is housed in the museum of Archbishop Ardak Manoukian of Hazrat Maryam Church in Tehran. It is regarded as a significant treasure of Armenian cultural and artistic heritage, as well as an integral part of the cultural identity of the Christian community. Given the importance of this topic, the main objective of this research is to investigate the extent of fungal damage and the acidity level of
the manuscript in question. This study is experimental in nature, consisting of laboratory investigations conducted over the span of one month in the laboratory of the Conservation and Restoration Faculty at Iran University of Art. To measure the acidity of the paper, a colorimetric method was employed following the standard of direct titration. Additionally, to assess fungal contamination, samples were cultured on Sabouraud Dextrose Agar Solid Medium, and a transmission polarizing microscope was utilized for examination. Chaetomium and Penicillium fungi were isolated from one of the eight samples tested, and an increase in acidity was observed in the manuscript's paper. Due to the complexities of technology, pathology, and environmental
sensitivity, this manuscript requires specific guidelines in museums and repositories to minimize fungal contamination and acidity levels in the paper.

Cultural heritage, as a mirror of human ingenuity, reflects the diversity of human civilization and serves as a bridge between the past and present, shaping our collective understanding of our shared history. The protection and maintenance of this rich and valuable treasure is a vital responsibility that requires comprehensive and multilateral strategies, as well as the joint efforts of all relevant experts and specialists. In this context, the principles and practices
of health, safety, and environmental engineering (HSE) can significantly contribute to the protection of cultural assets and the individuals involved in their preservation. HSE engineering plays an essential role in risk assessment and management during restoration projects and develops specific safety practices and procedures for safeguarding cultural heritage. By implementing risk management strategies and taking appropriate measures, potential risks to cultural works can be mitigated to an acceptable level. In this article, after identifying and evaluating the threats facing cultural relics, the application of HSE engineering and risk management tools will be explained, along with innovative suggestions and strategies for ensuring the safety and protection
of these invaluable treasures.

The Qajar-era Qalamkar cloths belonging to the Golestan Palace had been folded in wooden boxes in the warehouses for a long time. In alignment with the objective of preventing physical and biological damage to the fabrics, the process of organizing and restoring them was investigated. This was accomplished through library studies and the performance of necessary analyses, which will be explained quantitatively throughout the article. The
activities carried out to achieve the goals of the mentioned project are as follows: after photographing and documenting the fabrics, a technical and restoration certificate was prepared, and labels made from cotton fabric were sewn onto the cloth. Additionally, cleaning and dusting were performed, and the process of smoothing the folds was conducted to prevent deformation and physical damage at the fold points. Subsequently, the pH level was checked using pH meter strips. Fungal cultivation was carried out on Qalamkar works suspected of having fungi, and fungi cultivation was also performed in both the former and new storage areas. A fiber identification test was conducted to determine the type of fiber present. The results of the analyses indicate that the pH of the fabrics is within the neutral range. The fungal culture analysis revealed that Aspergillus niger grew on one of the fabrics and the door of a wooden box used for storage. Due to the presence of this type of fungus, periodic monitoring was recommended. The fiber identification analysis also confirmed that the fabric is made of cotton cellulose fiber. Finally, the Qalamkar fabrics were covered with cotton fabric and secured. Identification tags
were attached to the works, and with sufficient care and precision, they were transferred to the standard reservoir of Golestan Palace. Furthermore, protection and restoration solutions were provided to maintain the fabrics in the best possible condition.

This essay examines the institutional role of museums in preserving cultural heritage. Focusing on the evolution of museology worldwide and local-cultural features as well, it demonstrates that the concept of conserving cultural heritage extends beyond the physical preservation and restoration of museum objects. Museums, as social institutions, have a broad responsibility to conserve the cultural and social values of artifacts. By emphasizing the importance of a holistic approach to cultural heritage, this essay shows that the preservation of a museum object is not limited to technical actions, but also includes understanding its cultural and social values, appropriate interpretation, and connection with the community. Moreover, the importance of education and public awareness about cultural heritage to create a sense of belonging and sustainable preservation is emphasized.

Iran, with a history spanning over 7,000 years, is considered one of the pioneers of ancient mining and metallurgy in the world. Ancient mining and metallurgy, as part of Iran's engineering and cultural heritage, play a crucial role in understanding the history of these technologies and advancing related knowledge. The study of this field contributes to the preservation of this historical and cultural legacy. Since the 1990s, organized efforts in the field of ancient mining and metallurgy have been initiated in Iran, leading to significant achievements, including the implementation of national and international projects. This research reviews key studies conducted in the field of ancient mining and metallurgy, presenting the outcomes of activities in this area. Moreover, it highlights the values embedded in the heritage of ancient mining and metallurgy, emphasizing the need to preserve this valuable legacy and register significant ancient mining and metallurgy sites as national heritage assets.

The Mosalla of Paein Khiaban of Mashhad is one of the largest and most beautiful historic mosallas in Iran, built at the order of King Suleiman I during the Safavid era. according to inscription on the tile of the central porch, the date of construction and completion of the building is 1087 A.H. The architectural structure of the building consists of a high central porch in the middle and two domed porticoes on the sides. Both the internal and external surfaces of the building are decorated with various architectural elements, such as stucco work, tile work, painting and muqarnas. Among the various decorative employed in this structure, the mosaic tiles of the mihrab are unparalleled in terms of beauty and sophistication. Laboratory analysis of the chemical composition of the glaze of the altar tiles using SEM-EDX method demonstrated strong agreement with findings from other researchers, indicating a continuity of the tile-making tradition and glaze production with similar technology throughout the Safavid era across various r regions of Iran. A petrological study of the mineral composition of the body of the tiles also revealed the use of a similar and appropriate mineralogical composition, paired with good firing in their production, which contributed to the strength and durability of the tiles. The pathology of the building and its decorations indicated that a combination of different physical, chemical and human factors caused the destruction and erosion of the structure and its decorations, including the mosaic tiles. Among these, human activities and irregular urban development surrounding the building, along withimproper and careless restorations, played the main role in the destruction and erosion of the tiles. Considering the importance and sophistication of the mosaic tiles of the altar, following laboratory studies, the tiles of this part of the building were conserved and restored. For this purpose, after the primary conservation measures through cleaning and consolidation, the missing parts were restored according to the principles and theoretical foundations of restoration in the method of complementary restoration through color-matching.

The pathology of pottery works is considered one of the most fundamental pillars of conservation and restoration, as understanding the damage will pave the way for its preservation and restoration. Pottery works are generally more stable than many other materials found in archaeological excavations. However, when these works are buried in inappropriate conditions and unfavorable factors, they can suffer from significant damage. Without proper care in their protection, the result may be complete deterioration of the pottery. Damage to ceramic bodies occurs in two forms: Physical and chemical, along with mechanical factors, can accelerate these processes. In the pathology of clay bodies, it is essential to identify the origins and causes of these damages to implement the effective treatments aimed to enhance the longevity of the ceramics., In the pathology of clay bodies, we can refer to cracks, fractures, crystallization of various salts, damages from firing processes, biological damages, stains, delamination, and more. This research, will provide an overview of the most prevalent damages of clay bodies and the factors that cause them, and the relationship between the formation of one type of damage and its influence on the emergence of other damages. Recognizing these connections can inform more effective methods for the protection and restoration of pottery artifacts.

The Chogha Zanbil world heritage site in Khuzestan is one of the most important Elamite sites, constructed using materials such as mud bricks and baked bricks. Today, the use of petrographic methods holds a special place in archaeometric studies of historical materials like bricks and stones. This cost-effective method allows for the extraction of valuable technical information from historical materials. The main objective of this article is to identify the mineralogical characteristics of historical brick samples from Chogha Zanbil through the microscopic examination of their thin sections. The details examined in the bricks include the types of minerals that make up the bricks, texture (including grain size and shape), porosity, types of impurities, and their distribution, all presented in detail along with relevant images. The results of the studies indicate that the apparent color of the bricks from Chogha Zanbil ranges widely from yellow, brown, and red to green. Microscopic examinations not only introduce some physical characteristics of the bricks from Chogha Zanbil but also identify the main minerals present in their structure, which include iron oxide grains, calcite, quartz, chert, gypsum, fine mica grains, and feldspar. Additionally, the conducted studies provide a clear picture of the weathering processes affecting the bricks, particularly under the influence of soluble salts.

Glaze is a layer of glossy or matte glass that is applied to the surface of pottery, which not only enhances its beauty but also provides strength and impermeability to the surface. Glazes are divided into several categories according to the type of ingredients as well as the temperature and type of firing. Glazes made from silica are transparent and colorless, which metal oxides such as copper oxide or cobalt, etc. are added to color the glaze. In the primary division, the opaqueness or transparency of the glaze is relevant, which depends on the lead or alkalinity of the glaze. Other classifications of glaze are based on the type of materials used and the firing temperature as well as the firing environment of the glaze. Knowing the types of materials used in the glazes significantly aids in better examination and identification, as well as in recognizing existing defects in the glaze, the type of damage, and the preservation of historical objects. One of the materials used in the structure of historical glazes is silica or flint, which is also used in modern glazes. This substance exists in nature in the form of quartz stones, of which different types have been identified in different parts of the world, plays an important role in the glaze structure. It enhances the bonding between the body and the glaze, and when combined with other materials, it makes the glaze glassy. It plays an important role in the strength of the glaze, and therefore its existence is necessary in the glaze, especially at high temperatures. This research aims to study the physical and chemical structure of silica and its role and importance in glaze formulation. To achieve this, it is necessary first to examine the type and structure of silica, and then discuss its advantages and disadvantages in the structure of the glaze and its importance in the glaze. By studying books and articles this research tries to familiarize the audience with one of the most basic materials used in glaze, which is silica, and how the quantity and type of silica used affects the type of glaze produced.

The Iron Age in Iran (550-1450 BC) and beyond, represents a period characterized by significant social, cultural, economic and technological transformations during its evolutionary stages. Zavarehvar is an Iron Age settlement site located in the Varamin plain in central region of Iran, where numerous excavations have been carried out by various archeologists in recent decades. During the 2017 excavation at the Zavarehvar site, a number of gray pottery pieces related to burials were discovered. Given the distribution of the Iron Age cemeteries and the limited technical studies conducted on these potteries, our understanding of the production methods such as texture, components, and manufacturing processes is crucial for comprehending the pottery production technology of this specific period. Therefore, the results from laboratory studies can be beneficial in finding the production process of these artifacts. This research aimed to provide more precise knowledge for conducting comparative studies and determining the local origin of these artifacts by examining nine Iron Age pottery samples from this region using inductively coupled plasma mass spectrometry (ICP-MS) and petrographic analysis of thin sections. The results indicated that the main phases of the potteries, based on petrography, include quartz (SiO2), and calcite. The ICP-MS results also largely confirmed some of the petrographic observations. However, a significant part of the chemical clustering of ceramics was not due to heterogeneity in elemental composition, nor to differences in the clay sources used. Additionally, we can say that the potteries are local origin, since the soils studied showed significant similarities in trace elements with the pottery samples, confirming their local origin.