diff --git a/src/main/java/neqsim/process/equipment/stream/Stream.java b/src/main/java/neqsim/process/equipment/stream/Stream.java
index 59571daf9..ed8edb8d7 100644
--- a/src/main/java/neqsim/process/equipment/stream/Stream.java
+++ b/src/main/java/neqsim/process/equipment/stream/Stream.java
@@ -14,6 +14,7 @@
 import org.apache.logging.log4j.Logger;
 import com.google.gson.GsonBuilder;
 import neqsim.process.equipment.ProcessEquipmentBaseClass;
+import neqsim.process.measurementdevice.HydrocarbonDewPointAnalyser;
 import neqsim.process.util.monitor.StreamResponse;
 import neqsim.standards.gasquality.Standard_ISO6976;
 import neqsim.standards.oilquality.Standard_ASTM_D6377;
@@ -558,6 +559,18 @@ public double getRVP(double referenceTemperature, String unit, String returnUnit
     return standard.getValue("RVP", returnUnit);
   }
 
+  /** {@inheritDoc} */
+  @Override
+  public double getRVP(double referenceTemperature, String unit, String returnUnit,
+      String rvpMethod) {
+    SystemInterface localSyst = getFluid().clone();
+    Standard_ASTM_D6377 standard = new Standard_ASTM_D6377(localSyst);
+    standard.setReferenceTemperature(referenceTemperature, unit);
+    standard.setMethodRVP(rvpMethod);
+    standard.calculate();
+    return standard.getValue("RVP", returnUnit);
+  }
+
   /** {@inheritDoc} */
   @Override
   public String[][] reportResults() {
@@ -595,6 +608,16 @@ public double GCV() {
     return standard.getValue("GCV") * 1.0e3;
   }
 
+  /** {@inheritDoc} */
+  @Override
+  public double getHydrocarbonDewPoint(String temperatureUnit, double refpressure,
+      String refPressureUnit) {
+    HydrocarbonDewPointAnalyser dewPointAnalyser =
+        new HydrocarbonDewPointAnalyser("dew point analyser", this);
+    dewPointAnalyser.setReferencePressure(refpressure);
+    return dewPointAnalyser.getMeasuredValue(temperatureUnit);
+  }
+
   /** {@inheritDoc} */
   @Override
   public double getGCV(String unit, double refTVolume, double refTCombustion) {
diff --git a/src/main/java/neqsim/process/equipment/stream/StreamInterface.java b/src/main/java/neqsim/process/equipment/stream/StreamInterface.java
index a647b4edf..65c1a79f4 100644
--- a/src/main/java/neqsim/process/equipment/stream/StreamInterface.java
+++ b/src/main/java/neqsim/process/equipment/stream/StreamInterface.java
@@ -154,6 +154,19 @@ public default double getFlowRate(String unit) {
    */
   public double getRVP(double referenceTemperature, String unit, String returnUnit);
 
+
+  /**
+   * Calculates the Reid Vapor Pressure (RVP) of the stream.
+   *
+   * @param referenceTemperature the reference temperature at which RVP is calculated
+   * @param unit the unit of the reference temperature
+   * @param returnUnit the unit in which the RVP should be returned
+   * @param rvpMethod the method used to calculate RVP
+   * @return the calculated RVP in the specified return unit
+   */
+  public double getRVP(double referenceTemperature, String unit, String returnUnit,
+      String rvpMethod);
+
   /**
    * <p>
    * setFluid.
@@ -307,4 +320,17 @@ public default double getFlowRate(String unit) {
   /** {@inheritDoc} */
   @Override
   public int hashCode();
+
+
+  /**
+   * Calculates the hydrocarbon dew point of the stream.
+   *
+   * @param temperatureUnit the unit of the temperature to be used (e.g., "C" for Celsius, "K" for
+   *        Kelvin)
+   * @param refpressure the reference pressure at which the dew point is to be calculated
+   * @param refPressureUnit the unit of the reference pressure (e.g., "bar", "Pa")
+   * @return the hydrocarbon dew point temperature in the specified temperature unit
+   */
+  public double getHydrocarbonDewPoint(String temperatureUnit, double refpressure,
+      String refPressureUnit);
 }
diff --git a/src/test/java/neqsim/process/measurementdevice/HydrocarbonDewPointAnalyserTest.java b/src/test/java/neqsim/process/measurementdevice/HydrocarbonDewPointAnalyserTest.java
index 9c75cf8d9..05c069d8c 100644
--- a/src/test/java/neqsim/process/measurementdevice/HydrocarbonDewPointAnalyserTest.java
+++ b/src/test/java/neqsim/process/measurementdevice/HydrocarbonDewPointAnalyserTest.java
@@ -32,6 +32,8 @@ void testHCdewPoint() {
     hc_analyser.getMeasuredValue("C");
     Assertions.assertEquals(-14.0173918, hc_analyser.getMeasuredValue("C"), 1e-5);
 
+    Assertions.assertEquals(-14.0173918, stream1.getHydrocarbonDewPoint("C", 40.0, "bara"), 1e-5);
+
 
   }
 }