====== VoluntaryFlangeThicknessAddition ======

Voluntary stiffener flange thickness addition. Voluntary thickness addition  is the thickness that is voluntarily added by the owner or builder as extra margin against corrosion wastage, beyond what is required by the applicable rules.

===== Attributes =====

^ Name ^ Type ^ Use ^ Description ^
| numericvalue | xs:double | required | The numerical value of the quantity. |
| unit | xs:IDREF | required | The reference to the unitsML reference unit. |

^ Schema version | 3.2.0 |
^ Schema location | .\OCX_Schema.xsd |
^ Namespace | https://3docx.org/fileadmin//ocx_schema//V320//OCX_Schema.xsd |
^ Created | 2026-09-09T11:33:00Z |