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The article analyzes existing and proposed American and foreign standards for one inch perforated paper tape for information interchange. This standard covers the physical dimensions of the paper tape and its perforations. The unpunched tape shall have an overall nominal width of 1,000 inch and shall have a nominal thickness of .004 inch. The tape shall be used for recording up to eight levels of information across the tape. The longitudinal center line of the feed holes shall be parallel with the reference edge of the tape and located .392 inch plus or minus .004 inch from the reference edge. The feed holes in the tape shall be fully punched and round with a diameter of .046 inch plus .002 minus .001 inch. The code holes in the tape shall be fully punched and round with a diameter of .072 inch plus or minus .002 inch. All holes punched in the tape shall nominally center on the true intersection of longitudinal and perpendicular transverse center lines spaced .100 inch apart.