diff --git a/opm/material/components/Component.hpp b/opm/material/components/Component.hpp
index b8f166c9a..67772d410 100644
--- a/opm/material/components/Component.hpp
+++ b/opm/material/components/Component.hpp
@@ -103,6 +103,19 @@ public:
     static Scalar criticalPressure()
     { throw std::runtime_error("Not implemented: Component::criticalPressure()"); }
 
+
+    /*!
+     * \brief Returns the acentric factor of the component.
+     */
+    static Scalar acentricFactor()
+    { throw std::runtime_error("Not implemented: acentricFactor of the component"); }
+
+    /*!
+     * \brief Returns the critical volume in \f$\mathrm{[m2/kmol]}\f$ of the component.
+     */
+    static Scalar criticalVolume()
+    { throw std::runtime_error("Not implemented: criticalVolume of the compoenent"); }
+
     /*!
      * \brief Returns the temperature in \f$\mathrm{[K]}\f$ at the component's triple point.
      */
diff --git a/opm/material/components/TabulatedComponent.hpp b/opm/material/components/TabulatedComponent.hpp
index 37c2b1222..e1b9e4cd9 100644
--- a/opm/material/components/TabulatedComponent.hpp
+++ b/opm/material/components/TabulatedComponent.hpp
@@ -233,6 +233,18 @@ public:
     static Scalar criticalPressure()
     { return RawComponent::criticalPressure(); }
 
+    /*!
+     * \brief Returns the acentric factor of the component.
+     */
+    static Scalar acentricFactor()
+    { throw std::runtime_error("Not implemented: acentricFactor of the component"); }
+
+    /*!
+     * \brief Returns the critical volume in \f$\mathrm{[m2/kmol]}\f$ of the component.
+     */
+    static Scalar criticalVolume()
+    { throw std::runtime_error("Not implemented: criticalVolume of the compoenent"); }
+
     /*!
      * \brief Returns the temperature in \f$\mathrm{[K]}\f$ at the component's triple point.
      */