1 Scope
This part of IEC 62627, which is a technical report, summarizes the extensive industry research on development
of cleanliness specifications for single-mode (SM) and multimode (MM) connectors.
The summary of the result shows Table 1.
Table 1
—
Summary of the result
| Samples | Scratch/Contamination/Defect | A/RL | Clause | Reference | |
| SM/MM | Single-fibre/ multi-fibre | ||||
| SM PC | Single-fibre | Scratch | RL | 3 | [1], [5], [6] |
| MM PC | Single-fibre | Scratch | RL | 4 | [7] |
| SM PC | Single-fibre | Contamination | A and RL | 5 | [2], [6]. [8] |
| SM APC | Single-fibre | Contamination | A | 7 | [11] |
| SM APC | Single-fibre | Scratch | RL | 7.2 | [11] |
| SM APC | Multi-fibre | Contamination | A and RL | 8 | [12] |