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Batch to batch variation within one recipe is generally

  • A.not metameric, since the spectral curves are similar in shape
  • B.always highly metameric as between two successive batches
  • C.impossible to measure with any instrument
  • D.unrelated to the colourants used in the recipe

Answer: A

Small changes in concentration scale the curve rather than reshaping it. Metamerism arises when the shape rather than the level differs. Concentration scales the curve without reshaping it. Shape change is what causes metamerism.

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