Index: Ringtoets/Piping/src/Ringtoets.Piping.Data/Properties/Resources.Designer.cs
===================================================================
diff -u -r67e117952bef2b1524aebb434c654c2c9be77dbd -r7906ab33fe161cecffe7fd086d3a8cc824829aef
--- Ringtoets/Piping/src/Ringtoets.Piping.Data/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 67e117952bef2b1524aebb434c654c2c9be77dbd)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Data/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 7906ab33fe161cecffe7fd086d3a8cc824829aef)
@@ -134,7 +134,7 @@
         }
         
         /// <summary>
-        ///   Looks up a localized string similar to Standaard afwijking (?) moet groter zijn dan 0..
+        ///   Looks up a localized string similar to Standaard afwijking (σ) moet groter zijn dan 0..
         /// </summary>
         internal static string StandardDeviation_Should_be_greater_than_zero {
             get {
Index: Ringtoets/Piping/src/Ringtoets.Piping.Data/Properties/Resources.resx
===================================================================
diff -u -r67e117952bef2b1524aebb434c654c2c9be77dbd -r7906ab33fe161cecffe7fd086d3a8cc824829aef
--- Ringtoets/Piping/src/Ringtoets.Piping.Data/Properties/Resources.resx	(.../Resources.resx)	(revision 67e117952bef2b1524aebb434c654c2c9be77dbd)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Data/Properties/Resources.resx	(.../Resources.resx)	(revision 7906ab33fe161cecffe7fd086d3a8cc824829aef)
@@ -121,7 +121,7 @@
     <value>Geen lagen gevonden voor het profiel.</value>
   </data>
   <data name="StandardDeviation_Should_be_greater_than_zero" xml:space="preserve">
-    <value>Standaard afwijking (?) moet groter zijn dan 0.</value>
+    <value>Standaard afwijking (σ) moet groter zijn dan 0.</value>
   </data>
   <data name="DesignVariable_Percentile_must_be_in_range" xml:space="preserve">
     <value>Percentiel moet in het bereik van [0, 1] vallen.</value>