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Ted Pella 617-A Gold on Carbon Test specimen

$125.00
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SKU:
35304
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Ted Pella 617-A  Gold on Carbon Test specimen

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Ted Pella 617-A Gold on Carbon Test specimen.
  • Each specimen has a square grid pattern with large crystals in the center of each square and very fine crystals at the edges of each grid. Thus, medium and high resolution gap tests are performed on the same specimen. The larger crystals show facets which allow assessment of the gray level reproduction available at high resolution.
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