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ENWW 8 Selecting and using media 183
Paper-weight equivalence
Use the following table to determine the approximate equivalent basis weight for weight
specifications other than U.S. bond weight. For example, to determine the equivalent of
20-lb U.S. bond weight paper in U.S. cover weight, locate the bond weight (in row two, first
column) and scan across the row to the metric weight (in the last column). The equivalent
is 75 g/m
2
.
CAUTION Do not use weight that is less than 64 g/m
2
(17-lb bond) or more than 220 g/m
2
(58-lb bond).
Using media weights that are not listed in the paper-weight equivalence table can cause
jams.
Table 5. Paper-weight equivalence
U.S. bond
weight (lb)
U.S. text/
book
weight (lb)
U.S. cover
weight (lb)
U.S. Bristol
weight (lb)
U.S. index
weight (lb)
U.S. tag
weight (lb)
Metric
weight
(g/m
2
)
17 43 24 29 35 39 64
20 50 28 34 42 46 75
21 54 30 36 44 49 80
22 56 31 38 46 51 81
24 60 33 41 50 55 90
27 68 37 45 55 61 100
28 70 39 49 58 65 105
32 80 44 55 67 74 120
34 86 47 58 71 79 128
36 91 50 62 75 83 135
39 100 55 67 82 91 148
42 107 58 72 87 97 157
43 110 60 74 90 100 163
47 119 65 80 97 108 176
53 134 74 90 110 122 200
58 146 80 98 120 133 220