diff --git a/BarcodeStandard/BarcodeCommon.cs b/BarcodeStandard/BarcodeCommon.cs
index 2269b7f..c06b7d9 100644
--- a/BarcodeStandard/BarcodeCommon.cs
+++ b/BarcodeStandard/BarcodeCommon.cs
@@ -19,15 +19,15 @@ public List<string> Errors
             get { return this._Errors; }
         }
 
-        public void Error(string ErrorMessage)
+        public void Error(string errorMessage)
         {
-            this._Errors.Add(ErrorMessage);
-            throw new Exception(ErrorMessage);
+            this._Errors.Add(errorMessage);
+            throw new Exception(errorMessage);
         }
 
-        internal static bool CheckNumericOnly(string Data)
+        internal static bool CheckNumericOnly(string data)
         {
-            return Regex.IsMatch(Data, @"^\d+$", RegexOptions.Compiled);
+            return Regex.IsMatch(data, @"^\d+$", RegexOptions.Compiled);
         }
     }//BarcodeVariables abstract class
 }//namespace
diff --git a/BarcodeStandard/BarcodeStandard.csproj b/BarcodeStandard/BarcodeStandard.csproj
index a07a8d9..28b8d52 100644
--- a/BarcodeStandard/BarcodeStandard.csproj
+++ b/BarcodeStandard/BarcodeStandard.csproj
@@ -3,13 +3,13 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <Version>2.2.8</Version>
+    <Version>2.2.10</Version>
     <PackageId>BarcodeLib</PackageId>
     <Company>Pnuema Productions</Company>
     <Product>BarcodeLib</Product>
     <Authors>Brad Barnhill</Authors>
     <Description>This library was designed to give an easy class for developers to use when they need to generate barcode images from a string of data.</Description>
-    <Copyright>Copyright 2007-2020 Brad Barnhill</Copyright>
+    <Copyright>Copyright 2007-2021 Brad Barnhill</Copyright>
     <PackageProjectUrl>https://github.com/barnhill/barcodelib</PackageProjectUrl>
     <RepositoryUrl>https://github.com/barnhill/barcodelib.git</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
@@ -19,6 +19,8 @@
     <PackageLicenseFile>LICENSE.txt</PackageLicenseFile>
     <PackageIcon>upca.jpg</PackageIcon>
     <PackageIconUrl />
+    <AssemblyVersion>2.2.10.0</AssemblyVersion>
+    <FileVersion>2.2.10.0</FileVersion>
   </PropertyGroup>
   
   <ItemGroup>
diff --git a/BarcodeStandard/Release Notes.txt b/BarcodeStandard/Release Notes.txt
index b58b9a9..818df73 100644
--- a/BarcodeStandard/Release Notes.txt	
+++ b/BarcodeStandard/Release Notes.txt	
@@ -1,5 +1,9 @@
 Release Notes for BarcodeLib.dll
 ================================
+2.2.10.0
+- Fix Standard 2 of 5 encoding bug
+2.2.9.0
+- Fix Interleaved 2 of 5 encoding bug
 2.2.8.0
 - Fix Standard 2 of 5 checksum calculation
 2.2.7.0
diff --git a/BarcodeStandard/Symbologies/Standard2of5.cs b/BarcodeStandard/Symbologies/Standard2of5.cs
index 28513d8..8e9d38f 100644
--- a/BarcodeStandard/Symbologies/Standard2of5.cs
+++ b/BarcodeStandard/Symbologies/Standard2of5.cs
@@ -27,10 +27,10 @@ private string Encode_Standard2of5()
 
             var result = "11011010";
 
-            foreach (var c in Raw_Data)
+            for (int i = 0; i < Raw_Data.Length; i++)
             {
-                result += S25_Code[Int32.Parse(c.ToString())];
-            }//foreach
+                result += S25_Code[(int)char.GetNumericValue(Raw_Data, i)];
+            }
 
             result += _encodedType == TYPE.Standard2of5_Mod10 ? S25_Code[CalculateMod10CheckDigit()] : "";