Surface Resistance

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UNI EN 12720 surfaces resistance to cool liquid reaction Class B*
CONTACT TIME
STAINING AGENTS 16 hrs 1 hrs 10 minutes 10 seconds
acetic acid (water solution 10%) 5 5 5 ¦
acetone 5 ¦ ¦ 5
ammonia (water solution 10%) 5 5 5 ¦
red wine 5 5 5 ¦
citric acid (water solution) 5 5 5 ¦
cleansing agent 5 5 ¦ ¦
coffee 5 5 ¦ ¦
disinfectant (water solution 10%) 5 5 5 ¦
endorsing ink 2 ¦ ¦ ¦
ethanol (water solution 48%) 5 5 5 ¦
ethyl-butyl acetate(1:1) 5 ¦ ¦ 5
olive oil 5 5 5 ¦
paraffin oil 5 5 ¦ ¦
solid carbonate (water solution 10%) 5 5 ¦ ¦
tea 5 5 ¦ ¦
water 5 5 ¦ ¦
beer 5 5 5 ¦
UNI 9.115 abrasion resistance 4o level
UNI EN 12722 resistance to dry heat Class B*
UNI EN 12721 resistance to damp heat Class B*
UNI 9.428 stratch resistance 4o level
UNI 9.429 resistance to temperature variations 5o level
UNI 9.300 stain resistance 4o level
EVALUTAION
5 no defects
4 slight change in colour or gloss
3 moderate change in colour or gloss
2 strong mark
1 surface detachment
¦ not required by UNI 10944
* compliant UNI 10944