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The thicker window films known as safety and security window film are designed to perform under extreme conditions, and as such there are specific standard criteria these films should meet, such as American standards ANSI Z.97, CPSC 16 CFR 1201, Cat II (400 ft-lb), and the British Standards BS 6206 (Class A, B, C).
The film thickness is selected for level of protection desired and the dimensions of the glass pane. Manufacturers recommend 100 micrometer film (2 ply) for glass up to 3 mm (1/8 in) and 175 micrometer film for glass over 6 mm (1/4 in). These films can be applied for security applications, where a delay of forced entry is desired.
The Gila is the same wild place it was 1,000 years ago, and with conservation efforts like those lead by Travis Perry of Furman University, one can only hope it will remain the same for a thousand ...
Working at dirty workstations or using bad rollers for motion picture film can cause dirt, scratches, and abrasions. Tears can occur when the film is stressed during winding or projection, in addition to improper threading. [13] Repeated use, including the repeated insertion and removal of film from sleeves can also cause scratches and abrasions.
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A typical window insulation film kit, consisting of plastic shrink film (folded-up) and a roll of double-sided tape. One commonly used film is a heat-shrink plastic which is attached to the window frame using double-sided pressure-sensitive tape. A hair dryer is used to remove creases and improve optical clarity.
See-through graphics on the outside of a window See-through graphics: the view outside is unobstructed. Perforated self-adhesive window films are often used to create see-through graphics. [1] A graphic is printed on the front side of the film which contains circular holes (perforations) covering up to fifty percent of the surface area.
Photographic fixer is a mixture of chemicals used in the final step in the photographic processing of film or paper. The fixer stabilises the image, removing the unexposed silver halide remaining on the photographic film or photographic paper, leaving behind the reduced metallic silver that forms the image. By fixation, the film or paper is ...