Assertion: tungsten's number | /r/HasProperty | standardized by the international organization
Facets:
value: for standardization
type: PURPOSE
Source sentences:
text: A number of tungsten alloys have been standardized by the International Organization for Standardization and the American Welding Society in ISO 6848 and AWS A5.12, respectively, for use in GTAW electrodes, and are summarized in the adjacent table.