Unpunched Fortran Punchcard Sheets
Sheets of rectangular cards for Fortran programming punchcard machines, coated with inorganic substances, bleached kraft base ≤150 g/m², >95% chemical fibers. Blank for punching code holes. Fits HTS 4810.31.30.00 as non-punched punchcard machine cards.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other registers, account books or pads
Non-machine-specific cut cards may classify as other paper articles in 4820 if not punchcard designated.
If semichemical fluting paper rolls
Different fiber process (65% unbleached hardwood) and CMT crush test for corrugating moves to 4805.11.
If kraft paperboard >150 g/m²
Exceeding 150 g/m² weight limit places it in the 'other' heavier bleached kraft coated category.
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Import Tips & Compliance
• Obtain supplier affidavits confirming no other coatings beyond kaolin/binder to meet heading 4810 requirements
• Watch for strip vs sheet form; strips are explicit, but sheets qualify if rectangular for punch machines
Related Products under HTS 4810.31.30.00
Bleached Kraft Punchcard Machine Cards
Rectangular cards made from bleached kraft paperboard, coated with kaolin on both sides, weighing 150 g/m² or less, with over 95% chemical wood fibers. These not-punched cards are designed for use in punchcard machines for data processing and are supplied in strips or sheets. They fall under HTS 4810.31.30.00 due to their specific coating, fiber content, weight, and intended use as punchcard blanks.
Data Processing Punchcard Blank Strips
Strips of connected, not-punched cards from kaolin-coated bleached kraft paperboard, ≤150 g/m², >95% chemical process wood fibers. Used in legacy punchcard systems for inventory and computing tasks. Classified under HTS 4810.31.30.00 for punchcard machine-specific cards in strip form.
IBM 80-Column Punchcard Blanks
Standard 80-column format cards, kaolin-coated on one or both sides, from uniformly bleached kraft paperboard ≤150 g/m² with >95% chemical wood fibers. Not punched, for historical IBM punchcard readers in strips. HTS 4810.31.30.00 applies to these machine-specific data cards.
Blank Tabulating Machine Cards
Coated cards for tabulating punchcard machines, from bleached kraft ≤150 g/m² with chemical fibers >95%, no punches. Used in early data tabulation. Matches HTS 4810.31.30.00 for punchcard machine cards.
Legacy Computing Punchcard Strips
Perforated-edge strips of blank cards, kaolin-coated bleached kraft paperboard ≤150 g/m², >95% chemical wood fibers, for vintage computing punchcard systems. Not punched for data entry. HTS 4810.31.30.00 covers these in strips for punchcard machines.
Punchcard Reader Feed Cards
Fanfold strips of kaolin-coated bleached kraft cards ≤150 g/m², >95% chemical fibers, blank for punchcard readers. For continuous feeding in machines. HTS 4810.31.30.00 due to strip form and machine use.