Chaff Content
387
unreliable and unpredictable form. Perforation thickness must not exceed the
maximum form thickness of 0.025 in. / 0.0635 cm.
Tractor Pin Holes
The holes which engage the tractor pins must conform to the following
specifications:
Methods Of Forms Attachment
________ Must not allow air entrapment between copies of the form
________ Must not use hard brads or staples
________ Must not coincide with major perforation or any horizontal
perforation
________ Gluing lines must not result in a form that exceeds 0.025 in. /
0.0635 cm thickness
________ Staples must be used only in margin area of form
________ Staple cuts must not be in the direction of form movement
through the tractors
________ Staples must not occur in-line with the path of the tractor
holes
________ Staples should be placed in the margins so that they coincide
with areas of the form where printing will not occur
Cut-To-Tie Ratio
____:____ (Typical ratio is 4:1, or 80% cut to 20% tie)
Specification Inches Millimeters
Hole centerline (CL) to edge of form 0.236 ± 0.028 6.0 ± 0.1
Hole Diameter (Serrations or any
occlusion due to incorrect registration
of multipart forms cannot exceed this
dimension.)
0.156 ± 0.004 4.0 ± 0.1
Distance between centers of two
consecutive holes
0.500 ± 0.002 12.7 ± 0.05
Maximum deviation of holes from their
centerline
0.004 0.1
Maximum deviation of left-hand hole to
adjacent right-hand hole (CL to CL)
0.006 0.15
Maximum parallel deviation of left-hand
hole CL to right-hand hole CL
0.006 0.15
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