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Scratch & Dig Target (1st Surface Positive)

Scratch & Dig Target (1st Surface Positive), #59-154

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Stock #59-154 10 to 12 days
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₹84,303
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₹84,303
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Specifications

General

Note:
Standards are for comparing optics against ISO 10110 specifications.

Physical & Mechanical Properties

Scale Divisions:
Every 0.025
Scale Length (mm):
60 ±0.002
Width (mm):
50.80
Thickness (mm):
1.50
Dot Diameter Tolerance (mm):
±0.002
Line Width Tolerance (mm):
±0.002
Construction:
Black Anodized Aluminum Housing
Housing Tolerance (mm):
±0.2
Length (mm):
114.30

Optical Properties

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Float Glass
Surface Flatness (P-V):
3-4λ/inch
Surface Quality:
20-10 (inside active area)
Angle of Incidence (°):
45.00

Regulatory Compliance

RoHS 2015:
Compliant
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Reach 209:
Compliant
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Certificate of Conformance:
View
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Product Details

  • Feature Requirements in Accordance with ISO 10110-7 & ISO 14997
  • First Surface Pattern for System Calibration or Coating Inspection
  • Second Surface Pattern for Measuring Surface Defects

NIST Traceable Scratch Dig Standards are ideal for qualifying the scratch and dig surface defects on optical components. In addition to the Scratch Dig markings, there is a 60mm scale, 6 grids varying in size, and 6 blocks of lines with varying frequencies on each plate. The grids can be used to measure the area of irregularly shaped defects. For the NIST Traceable Scratch Dig Standards, the square root of the total defect area for a region is the grade number for that region. The standards are offered as sets of two plates. Plate 1 includes grade numbers ranging from 0.004 to 0.040, while Plate 2 includes 0.040 to 0.400. The first surface sets have the features marked on the top of the glass substrate. The second surface set has the features marked on the bottom of the glass substrate. The features on the positive set are opaque on a clear background. The features on the negative set are clear on an opaque background. 

Note: Certificate of Compliance is included with each product.

Technical Information

Plate 1
Grade No. Circ. Diameter (μm) Dim. of Scratch (μm) Freq. Block (lp/mm) Grid Block Line W (μm) Grid Block Line Spacing (μm)
0.004 4.5 1 x 16 500 1 4.5
0.006 7 1.6 x 25 312.5 1.6 7
0.010 11 2.5 x 40 200 2.5 11
0.016 18 4 x 63 125 4 18
0.025 28 6.3 x 100 80 6.3 28
0.040 45 10 x 160 50 10 45
Plate 2
Grade No. Circ. Diameter (μm) Dim. of Scratch (μm) Freq. Block (lp/mm) Grid Block Line W (μm) Grid Block Line Spacing (μm)
0.040 45 10 x 160 50 10 45
0.060 70 16 x 225 31.25 10 70
0.100 110 25 x 400 20 10 110
0.160 180 40 x 630 12.5 10 180
0.250 280 63 x 1000 8 10 280
0.400 450 100 x 1600 5 10 450

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