纸板
Index item
unit
data
1.thickness tolerance(max.)
≤1.6MM
±7.5 ±5.0
>1.6MM
2.density ≤1.6MM
g/cm3
1.00-1.20
>1.6MM-3.1MM
1.10-1.25 1.15-1.30
>3.0MM-6.0MM
3.tensile strength(mix.)
Mpa
Longitudinal ≤1.6MM
100 105 110
>1.6MM-3.0MM
4.tensile strength(mix.)traverse≤1.6MM
75
80 85
5.elongation rate(mix.)longitudinal
%
3.0
6.elongation rate(mix.)Traverse
4.0
7.thrinkage(max.)longitudinal
0.5
Traverse
0.7 5.0
Thickness
8.moisture content(max.)
6.0
9.ash content(max.)
1.0
10.electricity conductivity(max.)
Ms/m
8.0
11.PH of water extractives
6.0-9.0
12.electric breakdown strength(mix)
Kv/m
In oil ≤1.6MM
40 35 30
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