Controls: Quantity and size of local defects within a specific aperture. Local defects could be scratches, pits, broken bubbles, sleeks, scuff marks or coating blemishes.
Related Terms: Scratch-Dig, ISO 10110 Part 7, Defect Grade
Specification Must Contain: Grade to be met under specific grading system
Optimax Preferred Specification: Scratch-Dig per MIL-PRF-13830B
Reasons: Historical familiarity
Manufacturing Standards: MIL-PRF-13803B, ISO 10110-7, OEOSC OPI.002-2009