| 释义 |
{{Use British (Oxford) English|date=January 2012}}{{Unreferenced|date=December 2009}} ISO 31-6 is the part of international standard ISO 31 that defines names and symbols for quantities and units related to light and related electromagnetic radiations. It is superseded by ISO 80000-7. Its definitions include: | Quantity | Unit | Remarks | | Name | Symbol | Name | Symbol | Definition |
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{{ISO standards}}{{Physics-stub}}{{Standard-stub}} 1 : ISO 31 |