diff --git a/README.md b/README.md
index 904e85d58545492cda4bdec46b2268764776acc0..b1d8f58e59ffdb6390a077ea830791db7b89e797 100644
--- a/README.md
+++ b/README.md
@@ -66,11 +66,11 @@ Some derived units of special interest for urban simulation like kW·h (encodes
 | W·h      | [L]²·[M]/[T]² 
 | kW·h     | [L]²·[M]/[T]² 
 | MW·h     | [L]²·[M]/[T]² 
-| m³/min   | [L]³/[T] 
-| m³/h     | [L]³/[T] 
-| m³/s     | [L]³/[T] 
-| m³/d     | [L]³/[T] 
-| l/min    | [L]³/[T] 
+| m³/min   | [L]³/[T] VolumetricFlowRate
+| m³/h     | [L]³/[T] VolumetricFlowRate
+| m³/s     | [L]³/[T] VolumetricFlowRate
+| m³/d     | [L]³/[T] VolumetricFlowRate
+| l/min    | [L]³/[T] VolumetricFlowRate
 
 Some units of special interest for urban simulation introduced with this plug-in:
 
diff --git a/de.hftstuttgart.cityunits.model/src/de/hftstuttgart/cityunits/model/UrbanSimulationUnits.java b/de.hftstuttgart.cityunits.model/src/de/hftstuttgart/cityunits/model/UrbanSimulationUnits.java
index df6ace88178302bf5e57f2f69533efff31d62099..be0d4b9910776176670e59f776b7d4ffc7517730 100644
--- a/de.hftstuttgart.cityunits.model/src/de/hftstuttgart/cityunits/model/UrbanSimulationUnits.java
+++ b/de.hftstuttgart.cityunits.model/src/de/hftstuttgart/cityunits/model/UrbanSimulationUnits.java
@@ -16,6 +16,7 @@ import tech.units.indriya.function.LogConverter;
 import tech.units.indriya.function.MultiplyConverter;
 import tech.units.indriya.unit.AlternateUnit;
 import tech.units.indriya.unit.BaseUnit;
+import tech.units.indriya.unit.ProductUnit;
 import tech.units.indriya.unit.TransformedUnit;
 import tech.units.indriya.unit.UnitDimension;
 import tech.units.indriya.unit.Units;
@@ -37,13 +38,14 @@ public class UrbanSimulationUnits extends AbstractSystemOfUnits {
 			AlternateUnit.of(Units.KILOGRAM, "kgCOâ‚‚eq").asType(CarbonEmission.class));
 	public static final Unit<CarbonEmission> GRAM_CO2_EQUIVALENT = addUnit(KILOGRAM_CO2_EQUIVALENT.divide(1000));
 	public static final Unit<CarbonEmission> TON_CO2_EQUIVALENT = addUnit(KILOGRAM_CO2_EQUIVALENT.multiply(1000));
-
 	public static final Unit<Dimensionless> PARTS_PER_MILLION = addUnit(new TransformedUnit<>(AbstractUnit.ONE,
 			MultiplyConverter.ofRational(BigInteger.ONE, BigInteger.valueOf(1000000))));
 	public static final Unit<Dimensionless> DECIBEL = addUnit(AbstractUnit.ONE.transform(
 			new LogConverter(10).inverse().concatenate(MultiplyConverter.ofRational(BigInteger.ONE, BigInteger.TEN))));
 	public static final Unit<Intensity> IRRADIANCE = addUnit(
 			new AlternateUnit<Intensity>(Units.WATT.divide(Units.SQUARE_METRE), "W/m²"));
+	public static final Unit<VolumetricFlowRate> VOLUMETRIC_FLOW = addUnit(
+			new ProductUnit<VolumetricFlowRate>(Units.CUBIC_METRE.divide(Units.SECOND))); // , "m³/s"
 
 	// To model costs I added monetary units quick and dirty as SI base units.
 	// According to JavaDoc of AbstractUnit, monetary units should rather be
diff --git a/de.hftstuttgart.cityunits.tests/src/de/hftstuttgart/cityunits/tests/QuantityTest.java b/de.hftstuttgart.cityunits.tests/src/de/hftstuttgart/cityunits/tests/QuantityTest.java
index 2cc46da5424820e3721cee5e2a3ac771a691e55a..1e71c2729cf111404e40196ee5eb041f962cc698 100644
--- a/de.hftstuttgart.cityunits.tests/src/de/hftstuttgart/cityunits/tests/QuantityTest.java
+++ b/de.hftstuttgart.cityunits.tests/src/de/hftstuttgart/cityunits/tests/QuantityTest.java
@@ -13,10 +13,13 @@ import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
 import de.hftstuttgart.cityunits.model.CarbonEmission;
+import de.hftstuttgart.cityunits.model.VolumetricFlowRate;
+import de.hftstuttgart.cityunits.model.Intensity;
 import de.hftstuttgart.cityunits.model.UrbanSimulationUnits;
 import tech.units.indriya.quantity.Quantities;
 import tech.units.indriya.unit.Units;
 
+
 // Quantities.getQuantity("1.50 €"); does not compile in Maven without cast to String ???
 // mvn install won't run this tests, since tycho (?) handles tests as integration tests, thus, mvn verify is required 
 class QuantityTest {
@@ -68,14 +71,25 @@ class QuantityTest {
 	}
 
 	@Test
-	void testCO2eq() {		
-		Quantity<CarbonEmission> q = Quantities.getQuantity((String) "5200.7 kgCOâ‚‚eq").asType(CarbonEmission.class);
-		System.out.println(q);
+	void testIrradiance() {
+		Quantity<Intensity> q = Quantities.getQuantity("1000 W/m²").asType(Intensity.class);
+		assertEquals("[M]/[T]³", q.getUnit().getDimension().toString(), "Wrong dimension!");
+	}
+
+	@Test
+	void testVolumetricFlows() {
+		Quantity<VolumetricFlowRate> q = Quantities.getQuantity("10800000 l/h").asType(VolumetricFlowRate.class);
+		assertEquals("[L]³/[T]", q.getUnit().getDimension().toString(), "Wrong dimension!");
+		assertEquals("3 m³/s", q.toSystemUnit().toString());
+	}
+
+	@Test
+	void testCO2eq() {
+		Quantity<CarbonEmission> q = Quantities.getQuantity((String) "5200.7 kg COâ‚‚eq").asType(CarbonEmission.class);
 		assertEquals("[M]", q.getUnit().getDimension().toString(), "Wrong dimension!");
-		assertTrue(q.isEquivalentTo(Quantities.getQuantity((String) "5.2007 tonCOâ‚‚eq").asType(CarbonEmission.class)),
-				"Wrong conversion from kg of COâ‚‚eq to ton of COâ‚‚eq!");
 		assertTrue(q.isEquivalentTo(Quantities.getQuantity((String) "5200700 gCOâ‚‚eq").asType(CarbonEmission.class)),
 				"Wrong conversion from kg of COâ‚‚eq to gram of COâ‚‚eq!");
+		assertTrue(q.isEquivalentTo(Quantities.getQuantity((String) "5.2007 tonCOâ‚‚eq").asType(CarbonEmission.class)),
+				"Wrong conversion from kg of COâ‚‚eq to ton of COâ‚‚eq!");
 	}
-
 }