IEC 61300-3-33:2022 describes the procedure to measure the withdrawal force between the pin gauge and the resilient alignment sleeve. This measurement procedure is applicable to single-fibre cylindrical ferrule optical connectors. This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:

1. harmonize "gauge pin" to "pin gauge";
2. update test apparatus in Figure 1;
3. change of clause structure;
4. specified pin gauge requirements in Table 1.