Sora tax stamps

SORA tax stamps is a woodfree uncoated graphic paper with UV visible security.

Paper specification

STANDARD 80 110 Tolerance
GRAMMAGE [g/m2] ISO 536 80 110 ± 2
SPECIFIC VOLUME [cm3/g ISO 534 1,13 1,08 ± 0,07
SMOOTHNESS BENDTSEN [ml/min] ISO 8791-2 120 120 ± 40
RELATIVE HUMIDITY [%] DIN 53118 47,5 47,5 ± 7,5
D65 BRIGHTNESS [%] ISO 2470-2 (D65/10°) 85 85
OPACITY [%] ISO 2471 85 97