scope:

This part of IEC 61300 describes methods for quantitativelyassessing the end face quality of a polished fibre optic connectoror of a fibre optic transceiver using a fibre-stub type interface.Sub-surface cracks and fractures are not considered in thisstandard. In general, the methods described in this standard applyto 125 ?m cladding fibres contained within a ferrule and intendedfor use with sources of ? 2 W of input power. However, portions areapplicable to non-ferruled connectors and other fibre types. Thoseportions are identified where appropriate. It is not the intentionof this standard that the size of scratches should be measured, thedimensions and requirements are selected such that they can beestimated. There is no need to measure for example if a scratch is2,3 ?m wide.