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  2. Conservation and restoration of glass objects - Wikipedia

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

    Conservation-restoration is the practice of cleaning and discovering the original state of an object, investigating the proper treatments and applying those treatments to restore the object to its original state without permanently altering the object, and then preserving the object to prevent further deterioration for generations to come (Caple, p. 5-6). [1]

  3. 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 ...

  4. 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 ...

  5. Glass disease - Wikipedia

    en.wikipedia.org/wiki/Glass_disease

    Glass disease, also referred to as sick glass or glass illness, is a degradation process of glass that can result in weeping, crizzling, spalling, cracking and fragmentation. [ 1 ] [ 2 ] Glass disease is caused by an inherent instability in the chemical composition of the original glass formula. [ 3 ]

  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. Glass cutter - Wikipedia

    en.wikipedia.org/wiki/Glass_cutter

    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. The scoring makes a split in the surface of the glass which encourages the glass to break along the score. [ 1 ]