ONIX Code Lists Issue 27, October 2014
List 147: Unit of usage

Value Description Notes

01 Copies Maximum number of copies that may be made of a permitted extract.
02 Characters Maximum number of characters in a permitted extract for a specified usage.
03 Words Maximum number of words in a permitted extract for a specified usage.
04 Pages Maximum number of pages in a permitted extract for a specified usage.
05 Percentage Maximum percentage of total content in a permitted extract for a specified usage.
06 Devices Maximum number of devices in ‘share group’.
07 Concurrent users Maximum number of concurrent users. NB where the number of concurrent users is specifically not limited, set the number of concurrent users to zero.
08 Percentage per time period Maximum percentage of total content which may be used in a specified usage per time period; the time period being specified as another EpubUsageQuantity.
09 Days Maximum time period in days.
13 Weeks Maximum time period in weeks.
14 Months Maximum time period in months.
10 Times Maximum number of times a specified usage may occur.
11 Allowed usage start page Page number where allowed usage begins. <Quantity> should contain an absolute page number, counting the cover as page 1. (This type of page numbering should not be used where the e-publication has no fixed pagination). Use with (max number of) Pages, Percentage of content, or End page to specify pages allowed in Preview.
12 Allowed usage end page Page number at which allowed usage ends. <Quantity> should contain an absolute page number, counting the cover as page 1. (This type of page numbering should not be used where the e-publication has no fixed pagination). Use with Start page to specify pages allowed in a preview.