SICIS Vetrite Certificates ISO UNI EN Standards

Materiali Energia Innovazione Rev. -- Execution Drafting Approval Page 7 of 9 _Eng. Mattia Santandrea, PhD_ _Eng. Mattia Santandrea, PhD_ _Eng. Luca Laghi_ |SQM_348_2020| Soci Fondatori ΔHvis 100% 50% 30% 15% 0% White +1ye +1ye +1ye 0 0 Black 0 0 0 0 0 Yellow 0 0 0 0 0 Magenta 0 0 0 0 0 Cyan 0 0 0 0 0 Table 4. Hue variation (ΔHvis) of the conditioned specimen with respect to the reference specimen – Type 3. ΔLvis 100% 50% 30% 15% 0% White -1 -1 -1 0 0 Black 0 0 0 0 0 Yellow 0 0 0 0 0 Magenta 0 0 0 0 0 Cyan 0 0 0 0 0 Table 5. Lightness variation (ΔLvis) of the conditioned specimen with respect to the reference specimen – Type 3. ΔCvis 100% 50% 30% 15% 0% White -1 -1 -1 -1 -1 Black 0 -1 -1 -1 -1 Yellow 0 -1 -1 -1 -1 Magenta 0 -1 -1 -1 -1 Cyan 0 -1 -1 -1 -1 Table 6. Chroma variation (ΔCvis) of the conditioned specimen with respect to the reference specimen – Type 4.

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