ASTM's business copy product standards are instrumental in the testing and evaluation of the various products and media used in printing business-related documents and papers. These products include film ribbons, toners, inks, print cartridges, and other components of both manual and electronic typewriters, printers, and copiers, as well as the carbon and printing paper, and correction media. These business copy product standards are responsible for assessing the image properties, resolution, color strength, lightfastness, adhesion, stain and smudge resistance, and other characteristics pertinent to the quality of printed results. These standards allow manufacturers of such products to fabricate and assess their merchandise to ensure their quality.