diff --git a/Results/Entities/TestRslt.cs b/Results/Entities/TestRslt.cs
index 3b33186ba..b044e8227 100644
--- a/Results/Entities/TestRslt.cs
+++ b/Results/Entities/TestRslt.cs
@@ -137,6 +137,7 @@ namespace Results.Entities
         public virtual bool IsPMaxTest()     { return (MethodClass != null) ? (MethodClass.Contains("PMaxTest") || MethodClass.Contains("LeakTest")) : true; }
         public virtual bool IsStartStop()    { return (MethodClass != null) ? MethodClass.Contains("FixedStart") : true; }
         public virtual bool IsDiverter()     { return (MethodClass != null) ? (MethodClass.Contains("FlyingStart") && MethodClass.Contains("MassColl")) : true; }
+        public virtual bool IsVolumeMethod() { return (MethodClass != null) ? (MethodClass.Contains("FixedStart") || MethodClass.Contains("FlyingStart")) : false; }
 
         public virtual string MethodElde()
         {
diff --git a/TBF/BenchControl/Sequences/SequenceBase.cs b/TBF/BenchControl/Sequences/SequenceBase.cs
index 69960bdfd..deaba9442 100644
--- a/TBF/BenchControl/Sequences/SequenceBase.cs
+++ b/TBF/BenchControl/Sequences/SequenceBase.cs
@@ -985,6 +985,7 @@ namespace TBF.BenchControl.Sequences
             bool isPMaxTest = tstRslt.IsPMaxTest();
             bool isStartStop = tstRslt.IsStartStop();
             bool isDiverter = tstRslt.IsDiverter();
+            bool isVolumeMethod = tstRslt.IsVolumeMethod();
 
 			System.Text.StringBuilder sb = new System.Text.StringBuilder();
 
@@ -1065,7 +1066,8 @@ namespace TBF.BenchControl.Sequences
             sb.Append(";"); sb.Append(tstRslt.VolumeMaster);	                                            /// BJ Velm . . . . objem podla etalonu (Prolonged: objem do vahy podla impulzov do vahy)
             sb.Append(";"); sb.Append(" ");						                                            /// BK Vmass  . . . objem podla druheho etalonu / prietokomeru pred tratou (teraz vynechavame)
             sb.Append(";"); sb.Append(tstRslt.TestTime);		                                            /// BL t
-            sb.Append(";"); sb.Append(tstRslt.ErrorMaster);		                                            /// BM Eelm   . . . chyba etalonu voci komercne pravej hodnote
+                                                                                                            /// 
+            sb.Append(";"); sb.Append(isVolumeMethod ? Config.Formulas.ErrorFromVolumes(tstRslt.ConstMasterCorr, tstRslt.ConstMasterRaw) : tstRslt.ErrorMaster);		                /// BM Eelm   . . . chyba etalonu voci komercne pravej hodnote
             sb.Append(";"); sb.Append(" ");		                                                            /// BN Emass  . . . chyba druheho etalonu voci komercne pravej hodnote (teraz vynechavame)
             sb.Append(";"); sb.Append((outPath != null && outPath.FlowMeter != null && outPath.FlowMeter.LtrPerPulse != 0) ? (1.0f / outPath.FlowMeter.LtrPerPulse) : 0);
                                                                                                             /// BO Const.MID  . konstanta eatlonu