Rough estimate of basis weight; A - 7- Page 93

Appendix

A - 7

A

Print surface

The characteristics may differ a little between the face side and reverse side of a sheet of paper.

Usually, the opening side of the ream of paper package is the print side. Follow any indication of the print side 
on the paper package. Typically, the print side is indicated by an arrow.

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

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