抄録
Since 1960, lasers have been used in various applications. However, the laser standards have been persued inIEC and ISO without any contact between them. IEO 's territory is related to diode laser and ISO 's territory isfor gas/solid lasers. Recently, as diode laser technology is greatly improved and the laser power increases, it 's application fields are overlapped with gas/solid lasers. However, there is a slight difference between twostandards and it has become urgently necessary to harmonise these two standards. This paper describes circumstancesof this harmonisation activity.
