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Table 3 Mean reflectance values (%) of ochre (1R and 2R), white (1B and 2B) and black tesserae (1N and 2N) before cleaning (m0) and after dry (m1) and wet cleaning (m2). CM-2600d Konica Minolta® standard deviation within 0.1%

From: Colorimetry to assess the visual impact of dust deposition on mosaics at sheltered archaeological sites

  1 \(\overline{\text{R}}\) 2 \(\overline{\text{R}}\) 1 \(\overline{\text{B}}\) 2 \(\overline{\text{B}}\) 1 \(\overline{\text{N}}\) 2 \(\overline{\text{N}}\)
Dirty (m0) 31.19 32.36 51.54 52.87 34.92 24.04
Dry cleaning (m1) 29.87 29.64 57.35 59.36 15.59 21.83
Wet cleaning (m2) 29.25 29.29 43.21 61.35 15.30 15.63