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What are the guidelines for reviewing and inspecting window film on the glass?

The glass with applied film should be viewed at right angles to the glass from the room side, at a distance of no less than 6 feet (2 meters). Viewing should be carried out in natural daylight, not in direct sunlight. The normal vision area should be assessed with the exception of a 2 inch (50mm) wide band around the perimeter of the unit.

The installation would be deemed acceptable if all of the following are unobtrusive (effects during visual cure should be disregarded): Dirt Particles, Hair and Fibers, Adhesive Gels, Fingerprints, Air Bubbles, Water Haze, Scores and Scratches, Film Distortion, Creases, Edge Lift, Nicks and Tears. Inspection may by made within 1 day of installation. Obtrusiveness of blemishes shall be judged by looking through the film installation under lighting conditions described above.

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