APPENDIX A - 4
Moisture content
Moisture content is the amount of water left in the paper after manufacture. It is one of the important
characteristics of the paper. This can change greatly depending on the storage environment, although
usually paper contains about 5% water by weight. Because paper often absorbs water, the amount of
water can sometimes be about 10% in a high humidity environment. When the amount of water
increases, the characteristic of the paper changes greatly. The fixing of the toner may become worse.
For storage of the paper and during use, we recommend that the humidity of the surrounding
environment is between 50% and 60%.
Rough estimate of basis weight
Paper size
g/m
2
lb
Bond
Index
60
16
64
17
75
20
90
24
105
28
120
32
135
36
161
43
90
200
53
110
Letter
8.5
×
11 in.
Legal
8.5
×
14 in.
Executive
7.25
×
10.5 in.
A4
210
×
297 mm
A5
148
×
210 mm
A6
105
×
148 mm
B5 (ISO)
201
×
276 mm
Envelope Monarch
3.875
×
7.5 in.
Envelope #9
3.875
×
8.9 in.
Envelope #10
4.12
×
9.5 in.
Envelope #11
4.5
×
10.375 in.
Envelope DL
110
×
220 mm
Envelope C5
162
×
229 mm
Envelope C6
114
×
162 mm
Envelope B5
176
×
250 mm
Envelope B6
176
×
125 mm
Folio