Index: DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilProfile1DAquiferLayerCombinerTests.cs
===================================================================
diff -u -r4540 -r4624
--- DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilProfile1DAquiferLayerCombinerTests.cs	(.../SoilProfile1DAquiferLayerCombinerTests.cs)	(revision 4540)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilProfile1DAquiferLayerCombinerTests.cs	(.../SoilProfile1DAquiferLayerCombinerTests.cs)	(revision 4624)
@@ -35,13 +35,13 @@
         var topLayerName = "L2";
         SoilProfile1DAquiferLayerCombiner.AquiferLayerProperties aquiferLayer = SoilProfile1DAquiferLayerCombiner.CombineLayers(soilProfile1D, topLayerName);
         // D70 from layer L2
-        Assert.AreEqual(0.0002, aquiferLayer.D70, diff);
+        Assert.That(aquiferLayer.D70, Is.EqualTo(0.0002).Within(diff));
         // Height from L2 + all layers below it that are aquifer unless an aquitard is in between
         // so sum of L2 and L3: 3 + 2 = 5
-        Assert.AreEqual(5.0, aquiferLayer.Height, diff);
+        Assert.That(aquiferLayer.Height, Is.EqualTo(5.0).Within(diff));
         // PermeabilityKx is average of L2 and L3 based on height
         // (0.0001 * 3 + 0.0006 * 2) / (3 + 2) = 0.0003
-        Assert.AreEqual(0.0003, aquiferLayer.PermeabilityKx, diff);
+        Assert.That(aquiferLayer.PermeabilityKx, Is.EqualTo(0.0003).Within(diff));
     }
 
     [Test]