Physical Test

Unit

58g/m2

68g/m²

78g/m²

98g/m²

118g/m²

Grammage

g/m²

58

68

78

98

119

Thickness

um

73-78

86-91

100-104

124-131

144-152

CD Difference on Grammage

cm^2/g

≤3

≤3

≤3

≤3

≤3

CD Difference on thickness

%

≤5

≤5

≤5

≤5

≤5

Bulkiness

cm^2/g

1.28-1.33

1.28-1.33

1.28-1.33

1.28-1.33

1.28-1.33

Surface Asorption COBB

g^/m²

≤35

≤35

≤35

≤35

≤35

Smoothness

S

28-40

28-40

28-40

21-40

21-40

Whiteness

%

20-30

20-30

20-30

20-30

20-30

ISO brightness

%

65-80

65-80

65-80

65-80

65-80

Opacity

%

≥91

≥93

≥95

≥97

≥97

Surface Strength

m/s

≥2.2

≥2.2

≥2.2

≥2.2

≥2.2

Moisture

%

5.5-7.0

5.5-7.0

5.5-7.0

5.5-7.0

5.5-7.0

Dust degree

Pc/m²

≤60

≤60

≤60

≤60

≤60