Terminology for quantities and units in International Standards

In 1992, the International Organization for Standardization (ISO) published a revised edition of the International Standard ISO 31, Quantities and Units. This standard consists of fourteen different parts (published as a single volume in 1993) and is issued in English (E) and French (F). The revision revealed many questions — new as well as old ones — about the terminology for quantities and units. Some of these questions concerning English terminology are discussed in this article. Comparison with German (D) and Swedish (S), since it is the author's mother tongue, is also made in some cases.