Discussion
Consider the following statements about textured samples.
1. Texture affects both the measured and the perceived colour.
2. Consistent sample presentation reduces the resulting variation.
3. Texture has no influence on an instrumental measurement.
Answer: D
Correct answer: 1 and 2 only
Statements 1 and 2 are correct: a textured surface scatters differently depending on how it is presented, which alters both the reading and the appearance. Statement 3 is the opposite of the truth - texture is precisely why sample presentation must be standardised, with the number of layers, the orientation and the aperture all specified.
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