Of units from one system to the screen or printer of another system. It does not even provide a specification that would allow communication For this reason, the european standard ENV 12435 in its clause 7.3 declares ISO 2955 obsolete.ĮNV 12435 is dedicated exclusively to the communication of measurements between humans in display and print, and does not provide codes that can be used in communication between systems. Sets” in their names they seem to be of less value today, when graphical user interfaces and laser printers are in wide-spread use. Because these standards carry the restriction of “limited character With limited character sets” where ISO 2955 refers to SI and other units provided by ISO 1000-1981, while ANSI X3.50 extends ISO 2955 to include U.S. The respective ISO and ANSI standards are both entitled “Representation of units in systems The Unified Code for Units of Measure is inspired by and heavily based on ISO 2955-1983, ANSI X3.50-1986, and HL7's extensions called “ISO+”. A typical application of The Unified Code for Units of Measure are electronic data interchange (EDI) protocols,īut there is nothing that prevents it from being used in other types of machine communication. The focus is on electronic communication, as opposed to communication between humans. The purpose is to facilitate unambiguous electronic communication The Unified Code for Units of Measure is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business. All rights reserved.Ĥ.6 Prefixes and Units Used in Information Technology

National Library of Medicine, Lister HillĬopyright 1999-2021 Regenstrief Institute, Inc. Download or clone repository on GitHub The Unified Code for Units of Measure The Unified Code for Units of Measure Gunther Schadow

Lumen ohm mass change due time