Publishers Press--A ColorSync Pioneer

The only check required that was not already being performed at Publishers was the GATF plate fall-off test. In the GATF Specifications for Compliance Document, both 25 percent and 75 percent tints are output, and the densities measured. There are specific tolerances for each piece of equipment that must be within range to achieve certain quality levels of certification. For example, in the CTP fall-off test, the density cannot exceed two units (e.g., a targeted 25 could be 23 or 27) for the platinum-, five units for gold-, and seven units for silver-level accreditation.