FACTOID # 137: Sick people is Switzerland stay in hospital for longer than the people of any other nation - almost 10 days, on average. Switzerland also has the world's highest number of hospital beds per capita.
 
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Encyclopedia > Punchhole
It has been suggested that this article or section be merged with Hole punch. (Discuss)

Holes can be punched through a variety of materials for a variety of purposes. One of the most common uses of punched holes is for filing papers. When done on a large scale the holes are usually drilled. Wikipedia does not have an article with this exact name. ... Hole Punch - Two hole variety A hole punch (known also as a hole puncher) is a common office tool that is used to create holes in sheets of paper, often for the purpose of collecting the sheets in a binder. ... The term hole may refer to various cavities and (not necessarily physical) voids : Black hole Electron hole, the absence of an electron in the valence band in solid state physics and electronics. ...

Contents


Filing holes

An illustration of filing holes
An illustration of filing holes

The most commonly used system for punching filing holes into paper is defined in International Standard ISO 838. Two holes with a diameter of 6±0.5 mm are punched into the paper. The centers of these holes are 80±0.5 mm apart and have a distance of 12±1 mm to the nearest edge of the paper. The holes are located symmetrically in relation to the axis of the sheet or document. Any paper format that is at least 100 mm high (e.g., ISO A7 and larger) can be filed using this system. Image File history File links Download high resolution version (1095x289, 8 KB) Licensing File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Download high resolution version (1095x289, 8 KB) Licensing File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Logo of the International Organization for Standardization The International Organization for Standardization (ISO or iso) is an international standard-setting body composed of representatives from national standards bodies. ...


Not specified in ISO 838, but also widely used, is an upwards compatible four-hole system. In it, the two middle holes correspond to those defined by ISO 838, plus there are two additional holes located 80 mm above and below these, to provide for more stability. Sheets punched with the four holes of this system can also be filed in ISO 838 two-hole binders.


The left margin of a printed document should be 20-25 mm wide, to accommodate for the ISO 838 punchholes.


In the United States (and in part also in Canada and Mexico), a different system with three filing holes is widely used, which is incompatible with the International Standard. There, the hole centers are 108 mm apart, while diameter and distance to the paper edge vary. This system is only usable for paper formats that are at least 240 mm high.


Other uses for punched holes in paper

Ticket (unseperated) of the Kurkino in Berchtesgaden CeBIT Home 1998 student day ticket with barcode Ticket can mean one of several things: // Permission A ticket is a voucher to indicate that one has paid for admission to a theatre, movie theater, amusement park, zoo, museum, concert, or other attraction, or... The punch card (or Hollerith card) is a recording medium for holding information for use by automated data processing machines. ... A roll of punched tape Punched tape is an old-fashioned form of data storage, consisting of a long strip of paper in which holes are punched to store data. ... A voting machine is a device to record and register votes to be counted as per any voting system, with or without printing a ballot for the voter to verify. ... Chads are paper particles created when holes are made in a computer punched tape or punch card. ... The international orienteering symbol. ... A perforation is a hole made by puncturing a surface. ...

See also

There have been many standard sizes of paper at different times and in different countries. ... This article needs to be cleaned up to conform to a higher standard of quality. ... Paper drilling is a technique used in trade binderies for providing large quantities of paper with round holes. ...

External links


  Results from FactBites:
 
Punchhole - Wikipedia, the free encyclopedia (349 words)
Sheets punched with the four holes of this system can also be filed in ISO 838 two-hole binders.
The left margin of a printed document should be 20-25 mm wide, to accommodate for the ISO 838 punchholes.
In the United States (and in part also in Canada and Mexico), a different system with three filing holes is widely used, which is incompatible with the International Standard.
  More results at FactBites »


 

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