Paper Specification
8-6
8.4.3 Paper / Form Properties
Description Specifications Applicable Standard / Method
basic weight 64 to 155 g/m ± 5%
(17 to 41 lb)
DIN EN ISO 536
condition no callous, folds, holes,
no raised parts
relative humidity (40 ± 7) % at (21 " 2)°C DIN EN ISO 287
specific volume 1.3 ± 0.2 cm/g DIN EN ISO 438
arch maximum 5 mm DIN 6724
bending force minimum 0.1 Nmm DIN 53 121
humidity
stretching
for every 10%
difference of humidity
between 40 and 60%
length maximum 0.04%
cross maximum 0.2%
DIN 53 130
smoothness by
Bekk
minimum 18s;
maximum 30s
DIN 53 103
porosity by
Bendtsen
5.3 ± 2.5 µm / (Pa H s) DIN 53 120
humidity entering
(Cobb 60)
23 ± 5 g/m DIN 53 132
pH-value > 5.0 DIN 53 124
opacity > 75 % DIN 53 146
paper width minimum: 4 inch
(101.6 mm)
maximum: 10 inch
(254 mm)
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