g/m2

50

GB/T451.2

g/m2

±5%

s

Greater than or equal to 300

GB/T456

μm

55±3

GB/T451.3

g/cm3

0.91±0.03

GB/T451.3

%

Greater than or equal to 85

GB/T7974

Greater than or equal to 2.50

GB/T12914

μm

Less than or equal to 2.0

GB/T22363

——

Greater than or equal to 1.05

GB/T28210

70 degree (Optical
DensityValueImageat70 degree )

——

Less than or equal to 0.25

——

Greater than or equal to 1.05

Less than or equal to 0.25

Greater than or equal to 0.80

Less than or equal to 0.25

Greater than or equal to 0.80

Less than or equal to 0.25

Greater than or equal to 0.80

%

6.0-8.0

GB/T462