
Specification for a basic symbol to denote the actual or potential presence of ionizing radiation
出版:British Standards Institution

專家解讀視頻
Shape and proportions of basic symbol to act as warning of ionizing radiation.
? British Standards Institution 2013
General notes:
This standard has been withdrawn as it is superseded by ISO 361:1975 which was never adopted as a British Standard.
ISO 361:1975 - Identical