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The conservation and restoration of photographs is the study of the physical care and treatment of photographic materials. It covers both efforts undertaken by photograph conservators, librarians, archivists, and museum curators who manage photograph collections at a variety of cultural heritage institutions, as well as steps taken to preserve collections of personal and family photographs.
Book boxes may range from simple four-flap enclosures made of archival safe paper or cardboard to custom clamshell or drop-spine boxes covered in book cloth. [ 51 ] Until recently, baked enamel steel shelving was considered the best option for book storage; however, if not properly baked the enamel coating can give off formaldehyde and other ...
Where the medium itself needs to be preserved, for example if a document is a crayon sketch by a famous artist on paper, a complex process of preservation may be used. Depending on the condition and importance of the item this can include gluing the media onto more stable media, or protective enclosing of the media.
With non-paper formats, the availability of equipment to access the information will be a factor (for example, playback equipment for audio-visual materials, or microform readers). An institution should determine how many, if any, other institutions hold the material, and consider coordinating efforts with those that do. [30]
Eventually the spores land on new material, and the reproductive cycle begins again. Identifying mold can be a challenge, because some species resemble dust, dirt, or spiderwebs. In addition, staining caused by mold can be confused with water damage. Ultraviolet light and magnification are two tools to aid in identifying mold on library ...
The photographic glass plates are stored vertically on the long side of the plate in storage boxes whose material is free of acid, lignin, polyvinyl chloride (PVC), dye, sulfur, and alum. The acidity of any paper storage used should show a pH between 7 and 8.5. [26] Glass plates should not be packed tightly and should not rub against each other.