This is not an attribute, but the namespace pseudo-attribute. The value provides a prefix and URI to use for the TBX elements. All namespace prefixes must be associated with a URL. This namespace is required on a top-level element if the TBX-namespaced elements are to be used.
| Value | Meaning |
|---|---|
| urn:iso:std:iso:30042:ed-1 | The URI that goes with the tbxprefix. |