This part of GB/T 12357 specifies the requirements for geometric dimension parameters, optical and transmission characteristics, mechanical properties and environmental performance of Ala, Alb and Ald multimode fibers. This standard applies to multimode optical fibers used in communication optical cables and other information transmission equipment.
GB/T 12357.1-2004 history
2016GB/T 12357.1-2015 Multimode optical fibers for communication - Part 1: Characteristics of multimode optical fibers of class A1
2004GB/T 12357.1-2004 Multimode optical fibres for telecommunication Part 1:Sectional specification for category A1 multimode fibres
1990GB/T 12357-1990 The series of multimode optical fibres for telecommunication