PURPOSE
Printing of text and illustrative text publications using high-resolution printing

(ТC 790282162.015-2017)

Name of indicators and unit of measurement
№2
Normative value
Average actual value
Paper weight with an area of 1sq.m., g
50±2 55±2
60±2 65±2
Breaking length on average in two directions, for paper with an area of 1 sq.m., g2
40-50
60-120

⩾2100
⩾2200

⩾2100
⩾2200
Mass fraction of ash, %
⩾2
4-7
Smoothness on each side, s
⩾20
35-55
Degree of impurity (number of specks per 1 sq.m.):
-the area from 0.1 to 0.5 sq.mm.
-the area from 0.5 to 1.5 sq.mm.
-the area over 1.5 sq.mm.

⩽200
⩽30
0

⩽200
⩽30
0
Humidity, %
⩽10
⩽10
Whiteness, %
60+65
62-65

✔ No folds, breaks, holes visible to the naked eye are allowed on the paper surface.
✔ Subtle folds, wrinkles, stripes, spots (excluding glossy spots) are allowed, which can not be detected during the manufacturing process (rewinding), if the index of these intra-roll defects, defined according to State Standard GOST 13525.5, does not exceed 5 %.