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  2. Conservation and restoration of glass objects - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Incorrect relative humidity in glass objects can lead to crizzling or weeping of glass. Crizzling can occur when relative humidity is below 40%, and lead to cracks in its surface. Glass weeping or sweating can occur when relative humidity is above 55% and loses luster. [6] Thieves and vandals are a potential problem for any object. Since glass ...

  3. Tempered glass - Wikipedia

    en.wikipedia.org/wiki/Tempered_glass

    Tempered glass can be made from annealed glass via a thermal tempering process. The glass is placed onto a roller table, taking it through a furnace that heats it well above its transition temperature of 564 °C (1,047 °F) to around 620 °C (1,148 °F). The glass is then rapidly cooled with forced air drafts while the inner portion remains ...

  4. Hardpan - Wikipedia

    en.wikipedia.org/wiki/Hardpan

    In soil science, agriculture and gardening, hardpan or soil pan is a dense layer of soil, usually found below the uppermost topsoil layer. [1] There are different types of hardpan, all sharing the general characteristic of being a distinct soil layer that is largely impervious to water. Some hardpans are formed by deposits in the soil that fuse ...

  5. Conservation and restoration of photographic plates - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Glass plates with extensive flaking are stored on sink-mats horizontally and placed in a storage box with a label that reads "Caution: Broken glass. Carry Horizontally." [12] Broken glass plate shards are "sandwiched" in between two pieces of buffered board and placed inside the four-flap enclosure. [24] AIC advises that form-fit support should ...

  6. Safety glass - Wikipedia

    en.wikipedia.org/wiki/Safety_glass

    As a result of its safety and strength, tempered glass is used in a variety of demanding applications, including passenger vehicle windows, shower doors, architectural glass doors and tables, refrigerator trays, as a component of bulletproof glass, for diving masks, and various types of plates and cookware. In the United States, since 1977 ...

  7. Cabinetry - Wikipedia

    en.wikipedia.org/wiki/Cabinetry

    For example, modern kitchens are examples of built-in cabinetry. Free-standing cabinets are more commonly available as off-the-shelf items and can be moved from place to place if required. Cabinets may be wall hung or suspended from the ceiling. Cabinet doors may be hinged or sliding and may have mirrors on the inner or outer surface.

  8. Glass cutter - Wikipedia

    en.wikipedia.org/wiki/Glass_cutter

    Glass cutter, showing hardened steel cutting wheel (far left), notches for snapping, and ball (on end of handle) for tapping. A glass cutter is a tool used to make a shallow score in one surface of a piece of glass (normally a flat one) that is to be broken in two pieces, for example to fit a window.

  9. Conservation and restoration of photographs - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    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.