Precision Accuracy SEC Size Estimation Chart (Transparency) for Defects and Measuring

Size estimation charts are useful in a variety of circumstances for accurately measuring spots, inclusions, and defects on different textile surfaces, paper, plastic, etc. Other brand transparency charts may be imaged using a second generation copy from a master negative. Ours are first generation Master charts for increased accuracy. Produced on high dimensionally stable lithographic film, .007 stable base polyester photographic film. A densitometer is used to calibrate the imaging equipment as well as a certified hglass scale and an Edmund scientific 60 power microscope to measure each image.

• Imaging: Charts are first generation for increased accuracy. Imaged at 4000 DPI or greater.
• Material: Fuji .007 polyester dimensionally stable lithographic film.
• Calibration (not certified): A densitometer is used to calibrate the imaging equipment. A Bishop Certified glass scale and an Edmund Scientific 60 power microscope to measure each stated feature.
• Accuracy: We guarantee the film when manufactured is accurate at the following specifications. DMIN:0.08 or less DMAX: 4.0 or greater Line Width less than .0004 of original feature with Geometric and Scaling Accuracy: +/-.0025” over 24” Accuracy at your facility may be affected by storage and handling.