21 step aluminium wedge for determination of the dose reproducibility and sensitometric curve shape, speed and mid-gradient of X-Ray screen-film radiography systems.

  • Dimensions: 231 x 110 x 31.5 mm
  • 21 steps with a width of 11 mm
  • 1.5 mm graduation per step
  • Made of a highest purity aluminium
  • Copper numbers marking each step
  • Other sizes of step wedges upon request


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