Index: Core/Common/test/Core.Common.Controls.Test/DataGrid/DataGridViewControlTest.cs
===================================================================
diff -u -rac96d7c315129af851634ed5a4a6800b59ede718 -r2a61453b3c465ad734985fb9f42352b76a6ab5bc
--- Core/Common/test/Core.Common.Controls.Test/DataGrid/DataGridViewControlTest.cs	(.../DataGridViewControlTest.cs)	(revision ac96d7c315129af851634ed5a4a6800b59ede718)
+++ Core/Common/test/Core.Common.Controls.Test/DataGrid/DataGridViewControlTest.cs	(.../DataGridViewControlTest.cs)	(revision 2a61453b3c465ad734985fb9f42352b76a6ab5bc)
@@ -1684,7 +1684,7 @@
                 gridTester.FireEvent("Leave", EventArgs.Empty);
 
                 // Assert
-                Assert.AreEqual(new RoundedDouble(2, Convert.ToDouble(newValue)), new RoundedDouble(2, Convert.ToDouble(dataGridViewCell.FormattedValue)));
+                Assert.AreEqual(Convert.ToDouble(newValue), Convert.ToDouble(dataGridViewCell.FormattedValue));
             }
         }
 
Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/DikeProfiles/RoughnessPointTest.cs
===================================================================
diff -u -ra1abe798a3991d9fff01eae522ccae2a43d0a931 -r2a61453b3c465ad734985fb9f42352b76a6ab5bc
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/DikeProfiles/RoughnessPointTest.cs	(.../RoughnessPointTest.cs)	(revision a1abe798a3991d9fff01eae522ccae2a43d0a931)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/DikeProfiles/RoughnessPointTest.cs	(.../RoughnessPointTest.cs)	(revision 2a61453b3c465ad734985fb9f42352b76a6ab5bc)
@@ -26,6 +26,7 @@
 using Core.Common.TestUtil;
 using NUnit.Framework;
 using Ringtoets.Common.Data.DikeProfiles;
+using Ringtoets.Common.Data.TestUtil;
 
 namespace Ringtoets.Common.Data.Test.DikeProfiles
 {
@@ -45,7 +46,7 @@
             // Assert
             Assert.AreEqual(new Point2D(1.18, 2.27), roughnessPoint.Point);
             Assert.AreEqual(2, roughnessPoint.Roughness.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(2, roughness), roughnessPoint.Roughness);
+            Assert.AreEqual(roughness, roughnessPoint.Roughness, roughnessPoint.Roughness.GetAccuracy());
         }
 
         [Test]
Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probabilistics/LogNormalDistributionTest.cs
===================================================================
diff -u -ra1abe798a3991d9fff01eae522ccae2a43d0a931 -r2a61453b3c465ad734985fb9f42352b76a6ab5bc
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probabilistics/LogNormalDistributionTest.cs	(.../LogNormalDistributionTest.cs)	(revision a1abe798a3991d9fff01eae522ccae2a43d0a931)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probabilistics/LogNormalDistributionTest.cs	(.../LogNormalDistributionTest.cs)	(revision 2a61453b3c465ad734985fb9f42352b76a6ab5bc)
@@ -99,7 +99,7 @@
 
             // Assert
             Assert.AreEqual(numberOfDecimalPlaces, distribution.Mean.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(numberOfDecimalPlaces, value), distribution.Mean);
+            Assert.AreEqual(value, distribution.Mean, distribution.Mean.GetAccuracy());
         }
 
         [Test]
@@ -151,7 +151,7 @@
 
             // Assert
             Assert.AreEqual(numberOfDecimalPlaces, distribution.StandardDeviation.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(numberOfDecimalPlaces, standardDeviation), distribution.StandardDeviation);
+            Assert.AreEqual(standardDeviation, distribution.StandardDeviation, distribution.StandardDeviation.GetAccuracy());
         }
 
         [Test]
Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probabilistics/NormalDistributionTest.cs
===================================================================
diff -u -ra1abe798a3991d9fff01eae522ccae2a43d0a931 -r2a61453b3c465ad734985fb9f42352b76a6ab5bc
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probabilistics/NormalDistributionTest.cs	(.../NormalDistributionTest.cs)	(revision a1abe798a3991d9fff01eae522ccae2a43d0a931)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probabilistics/NormalDistributionTest.cs	(.../NormalDistributionTest.cs)	(revision 2a61453b3c465ad734985fb9f42352b76a6ab5bc)
@@ -81,7 +81,7 @@
 
             // Assert
             Assert.AreEqual(numberOfDecimalPlaces, distribution.Mean.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(numberOfDecimalPlaces, value), distribution.Mean);
+            Assert.AreEqual(value, distribution.Mean, distribution.Mean.GetAccuracy());
         }
 
         [Test]
@@ -98,7 +98,7 @@
 
             // Assert
             Assert.AreEqual(numberOfDecimalPlaces, distribution.StandardDeviation.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(numberOfDecimalPlaces, standardDeviation), distribution.StandardDeviation);
+            Assert.AreEqual(standardDeviation, distribution.StandardDeviation, distribution.StandardDeviation.GetAccuracy());
         }
 
         [Test]
Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probabilistics/TruncatedNormalDistributionTest.cs
===================================================================
diff -u -rb286d241c3bfefe14166cc01382e806c98b54b5a -r2a61453b3c465ad734985fb9f42352b76a6ab5bc
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probabilistics/TruncatedNormalDistributionTest.cs	(.../TruncatedNormalDistributionTest.cs)	(revision b286d241c3bfefe14166cc01382e806c98b54b5a)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probabilistics/TruncatedNormalDistributionTest.cs	(.../TruncatedNormalDistributionTest.cs)	(revision 2a61453b3c465ad734985fb9f42352b76a6ab5bc)
@@ -65,7 +65,7 @@
 
             // Assert
             Assert.AreEqual(numberOfDecimalPlaces, distribution.LowerBoundary.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(numberOfDecimalPlaces, value), distribution.LowerBoundary);
+            Assert.AreEqual(value, distribution.LowerBoundary, distribution.LowerBoundary.GetAccuracy());
         }
 
         [Test]
@@ -80,7 +80,7 @@
 
             // Assert
             Assert.AreEqual(numberOfDecimalPlaces, distribution.UpperBoundary.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(numberOfDecimalPlaces, value), distribution.UpperBoundary);
+            Assert.AreEqual(value, distribution.UpperBoundary, distribution.UpperBoundary.GetAccuracy());
         }
 
         [Test]
Index: Ringtoets/Common/test/Ringtoets.Common.IO.Test/FileImporters/DikeProfilesImporterTest.cs
===================================================================
diff -u -r50051daeae0e7195d2cc72d704e8efd81e442f39 -r2a61453b3c465ad734985fb9f42352b76a6ab5bc
--- Ringtoets/Common/test/Ringtoets.Common.IO.Test/FileImporters/DikeProfilesImporterTest.cs	(.../DikeProfilesImporterTest.cs)	(revision 50051daeae0e7195d2cc72d704e8efd81e442f39)
+++ Ringtoets/Common/test/Ringtoets.Common.IO.Test/FileImporters/DikeProfilesImporterTest.cs	(.../DikeProfilesImporterTest.cs)	(revision 2a61453b3c465ad734985fb9f42352b76a6ab5bc)
@@ -23,14 +23,14 @@
 using System.Collections.Generic;
 using System.IO;
 using Core.Common.Base;
-using Core.Common.Base.Data;
 using Core.Common.Base.Geometry;
 using Core.Common.TestUtil;
 using NUnit.Framework;
 using Rhino.Mocks;
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.DikeProfiles;
 using Ringtoets.Common.Data.Exceptions;
+using Ringtoets.Common.Data.TestUtil;
 using Ringtoets.Common.IO.FileImporters;
 using Ringtoets.Common.IO.FileImporters.MessageProviders;
 using Ringtoets.Common.IO.TestUtil;
@@ -328,17 +328,17 @@
             Assert.AreEqual("profiel004", dikeProfile4.Id);
             Assert.AreEqual("Valide naam", dikeProfile4.Name);
             Assert.AreEqual(-17.93475471, dikeProfile4.X0);
-            Assert.AreEqual(new RoundedDouble(2, 330.0), dikeProfile4.Orientation);
+            Assert.AreEqual(330.0, dikeProfile4.Orientation, dikeProfile4.Orientation.GetAccuracy());
             Assert.IsFalse(dikeProfile4.HasBreakWater);
 
             DikeProfile dikeProfile5 = dikeProfiles[4];
             Assert.AreEqual(new Point2D(136039.49100000039, 533920.28050000477), dikeProfile5.WorldReferencePoint);
             Assert.AreEqual("profiel005", dikeProfile5.Id);
             Assert.AreEqual("Heeeeeeeeeeeeeeeeeeeeeeeele laaaaaaaaaaaaaaaaaaaange naaaaaaaaaaam", dikeProfile5.Name);
             Assert.AreEqual(15.56165507, dikeProfile5.X0);
-            Assert.AreEqual(new RoundedDouble(2, 330.0), dikeProfile5.Orientation);
+            Assert.AreEqual(330.0, dikeProfile5.Orientation, dikeProfile5.Orientation.GetAccuracy());
             Assert.IsTrue(dikeProfile5.HasBreakWater);
-            Assert.AreEqual(new RoundedDouble(2, 6.0), dikeProfile5.DikeHeight);
+            Assert.AreEqual(6.0, dikeProfile5.DikeHeight, dikeProfile5.DikeHeight.GetAccuracy());
         }
 
         [Test]
Index: Ringtoets/Common/test/Ringtoets.Common.IO.Test/FileImporters/ForeshoreProfilesImporterTest.cs
===================================================================
diff -u -r31f4ca2b08257cf05459f63e0d715239e3d90c55 -r2a61453b3c465ad734985fb9f42352b76a6ab5bc
--- Ringtoets/Common/test/Ringtoets.Common.IO.Test/FileImporters/ForeshoreProfilesImporterTest.cs	(.../ForeshoreProfilesImporterTest.cs)	(revision 31f4ca2b08257cf05459f63e0d715239e3d90c55)
+++ Ringtoets/Common/test/Ringtoets.Common.IO.Test/FileImporters/ForeshoreProfilesImporterTest.cs	(.../ForeshoreProfilesImporterTest.cs)	(revision 2a61453b3c465ad734985fb9f42352b76a6ab5bc)
@@ -24,7 +24,6 @@
 using System.IO;
 using System.Linq;
 using Core.Common.Base;
-using Core.Common.Base.Data;
 using Core.Common.Base.Geometry;
 using Core.Common.TestUtil;
 using NUnit.Framework;
@@ -33,6 +32,7 @@
 using Ringtoets.Common.Data.DikeProfiles;
 using Ringtoets.Common.Data.Exceptions;
 using Ringtoets.Common.Data.FailureMechanism;
+using Ringtoets.Common.Data.TestUtil;
 using Ringtoets.Common.Forms.PresentationObjects;
 using Ringtoets.Common.IO.FileImporters;
 using Ringtoets.Common.IO.FileImporters.MessageProviders;
@@ -369,15 +369,15 @@
                         Assert.AreEqual("profiel004", foreshoreProfile4.Id);
                         Assert.AreEqual("Valide naam", foreshoreProfile4.Name);
                         Assert.AreEqual(-17.93475471, foreshoreProfile4.X0);
-                        Assert.AreEqual(new RoundedDouble(2, 330.0), foreshoreProfile4.Orientation);
+                        Assert.AreEqual(330.0, foreshoreProfile4.Orientation, foreshoreProfile4.Orientation.GetAccuracy());
                         Assert.IsFalse(foreshoreProfile4.HasBreakWater);
 
                         ForeshoreProfile foreshoreProfile5 = readForeshoreProfilesArray[4];
                         Assert.AreEqual(new Point2D(136039.49100000039, 533920.28050000477), foreshoreProfile5.WorldReferencePoint);
                         Assert.AreEqual("profiel005", foreshoreProfile5.Id);
                         Assert.AreEqual("Heeeeeeeeeeeeeeeeeeeeeeeele laaaaaaaaaaaaaaaaaaaange naaaaaaaaaaam", foreshoreProfile5.Name);
                         Assert.AreEqual(15.56165507, foreshoreProfile5.X0);
-                        Assert.AreEqual(new RoundedDouble(2, 330.0), foreshoreProfile5.Orientation);
+                        Assert.AreEqual(330.0, foreshoreProfile5.Orientation, foreshoreProfile5.Orientation.GetAccuracy());
                         Assert.IsTrue(foreshoreProfile5.HasBreakWater);
                     });
 
Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingInputTest.cs
===================================================================
diff -u -r7927641f2d9d74e77740f88c794fbcfd03a250dc -r2a61453b3c465ad734985fb9f42352b76a6ab5bc
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingInputTest.cs	(.../PipingInputTest.cs)	(revision 7927641f2d9d74e77740f88c794fbcfd03a250dc)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingInputTest.cs	(.../PipingInputTest.cs)	(revision 2a61453b3c465ad734985fb9f42352b76a6ab5bc)
@@ -187,7 +187,7 @@
 
             // Assert
             Assert.AreEqual(originalNumberOfDecimalPlaces, input.ExitPointL.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(originalNumberOfDecimalPlaces, exitPointValue), input.ExitPointL);
+            Assert.AreEqual(exitPointValue, input.ExitPointL, input.ExitPointL.GetAccuracy());
         }
 
         [Test]
@@ -261,7 +261,7 @@
 
             // Assert
             Assert.AreEqual(originalNumberOfDecimalPlaces, input.EntryPointL.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(originalNumberOfDecimalPlaces, entryPointValue), input.EntryPointL);
+            Assert.AreEqual(entryPointValue, input.EntryPointL, input.EntryPointL.GetAccuracy());
         }
 
         [Test]
@@ -284,8 +284,8 @@
             input.SurfaceLine = surfaceLine;
 
             // Assert
-            Assert.AreEqual(new RoundedDouble(2, 1), input.EntryPointL);
-            Assert.AreEqual(new RoundedDouble(2, 2), input.ExitPointL);
+            Assert.AreEqual(2, input.EntryPointL, input.EntryPointL.GetAccuracy());
+            Assert.AreEqual(3, input.ExitPointL, input.ExitPointL.GetAccuracy());
         }
 
         [Test]
@@ -315,8 +315,8 @@
             input.SurfaceLine = surfaceLine;
 
             // Assert
-            Assert.AreEqual(new RoundedDouble(2, 2), input.EntryPointL);
-            Assert.AreEqual(new RoundedDouble(3, 3), input.ExitPointL);
+            Assert.AreEqual(2, input.EntryPointL, input.EntryPointL.GetAccuracy());
+            Assert.AreEqual(3, input.ExitPointL, input.ExitPointL.GetAccuracy());
         }
 
         [Test]
@@ -346,8 +346,8 @@
             input.SurfaceLine = surfaceLine;
 
             // Assert
-            Assert.AreEqual(new RoundedDouble(2, 2), input.EntryPointL);
-            Assert.AreEqual(new RoundedDouble(2, 3), input.ExitPointL);
+            Assert.AreEqual(2, input.EntryPointL, input.EntryPointL.GetAccuracy());
+            Assert.AreEqual(3, input.ExitPointL, input.ExitPointL.GetAccuracy());
         }
 
         [Test]
@@ -395,8 +395,8 @@
             input.SynchronizeEntryAndExitPointInput();
 
             // Assert
-            Assert.AreEqual(new RoundedDouble(2, 2), input.EntryPointL);
-            Assert.AreEqual(new RoundedDouble(3, 3), input.ExitPointL);
+            Assert.AreEqual(2, input.EntryPointL, input.EntryPointL.GetAccuracy());
+            Assert.AreEqual(3, input.ExitPointL, input.ExitPointL.GetAccuracy());
         }
 
         [Test]
@@ -426,8 +426,8 @@
             input.SynchronizeEntryAndExitPointInput();
 
             // Assert
-            Assert.AreEqual(new RoundedDouble(2, 2), input.EntryPointL);
-            Assert.AreEqual(new RoundedDouble(2, 3), input.ExitPointL);
+            Assert.AreEqual(2, input.EntryPointL, input.EntryPointL.GetAccuracy());
+            Assert.AreEqual(3, input.ExitPointL, input.ExitPointL.GetAccuracy());
         }
 
         [Test]
@@ -599,7 +599,7 @@
 
             // Assert
             Assert.AreEqual(originalNumberOfDecimalPlaces, input.AssessmentLevel.NumberOfDecimalPlaces);
-            Assert.AreEqual(new RoundedDouble(originalNumberOfDecimalPlaces, assessmentLevel), input.AssessmentLevel);
+            Assert.AreEqual(assessmentLevel, input.AssessmentLevel, input.AssessmentLevel.GetAccuracy());
         }
 
         [Test]
Index: Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/Views/PipingScenarioRowTest.cs
===================================================================
diff -u -r8b37c0f11e7d78b71c298763124973e94845c87b -r2a61453b3c465ad734985fb9f42352b76a6ab5bc
--- Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/Views/PipingScenarioRowTest.cs	(.../PipingScenarioRowTest.cs)	(revision 8b37c0f11e7d78b71c298763124973e94845c87b)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/Views/PipingScenarioRowTest.cs	(.../PipingScenarioRowTest.cs)	(revision 2a61453b3c465ad734985fb9f42352b76a6ab5bc)
@@ -188,7 +188,7 @@
             row.Contribution = (RoundedDouble) newValue;
 
             // Assert
-            Assert.AreEqual(new RoundedDouble(2, newValue), calculation.Contribution * 100);
+            Assert.AreEqual(newValue, calculation.Contribution * 100, calculation.Contribution.GetAccuracy());
             mocks.VerifyAll();
         }