diff --git a/build/default_data/ILCD/flowproperties/262a541b-209e-44cc-a426-33bce30de7b1.xml b/build/default_data/ILCD/flowproperties/262a541b-209e-44cc-a426-33bce30de7b1.xml
new file mode 100644
index 0000000..224626b
--- /dev/null
+++ b/build/default_data/ILCD/flowproperties/262a541b-209e-44cc-a426-33bce30de7b1.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<?xml-stylesheet href="../../stylesheets/flowproperty2html.xsl" type="text/xsl"?><flowPropertyDataSet xmlns="http://lca.jrc.it/ILCD/FlowProperty" xmlns:common="http://lca.jrc.it/ILCD/Common" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.1" xsi:schemaLocation="http://lca.jrc.it/ILCD/FlowProperty ../../schemas/ILCD_FlowPropertyDataSet.xsd">
+  <flowPropertiesInformation>
+    <dataSetInformation>
+      <common:UUID>262a541b-209e-44cc-a426-33bce30de7b1</common:UUID>
+      <common:name xml:lang="en">Carbon content (biogenic) - packaging</common:name>
+      <classificationInformation>
+        <common:classification>
+          <common:class level="0">Chemical composition of flows</common:class>
+        </common:classification>
+      </classificationInformation>
+    </dataSetInformation>
+    <quantitativeReference>
+      <referenceToReferenceUnitGroup refObjectId="93a60a57-a4c8-11da-a746-0800200c9a66" type="unit group data set" uri="../unitgroups/93a60a57-a4c8-11da-a746-0800200c9a66.xml">
+        <common:shortDescription xml:lang="en">Units of mass</common:shortDescription>
+      </referenceToReferenceUnitGroup>
+    </quantitativeReference>
+  </flowPropertiesInformation>
+  <modellingAndValidation>
+    <complianceDeclarations>
+      <compliance>
+        <common:referenceToComplianceSystem refObjectId="9ba3ac1e-6797-4cc0-afd5-1b8f7bf28c6a" type="source data set" uri="../sources/9ba3ac1e-6797-4cc0-afd5-1b8f7bf28c6a.xml">
+          <common:shortDescription>ILCD Data Network - compliance (non-Process)</common:shortDescription>
+        </common:referenceToComplianceSystem>
+        <common:approvalOfOverallCompliance>Fully compliant</common:approvalOfOverallCompliance>
+      </compliance>
+    </complianceDeclarations>
+  </modellingAndValidation>
+  <administrativeInformation>
+    <dataEntryBy>
+      <common:timeStamp>2020-08-12T13:33:14.875+01:00</common:timeStamp>
+      <common:referenceToDataSetFormat refObjectId="a97a0155-0234-4b87-b4ce-a45da52f2a40" type="source data set" uri="../sources/a97a0155-0234-4b87-b4ce-a45da52f2a40.xml">
+        <common:shortDescription>ILCD format</common:shortDescription>
+      </common:referenceToDataSetFormat>
+    </dataEntryBy>
+    <publicationAndOwnership>
+      <common:dataSetVersion>00.01.000</common:dataSetVersion>
+    </publicationAndOwnership>
+  </administrativeInformation>
+</flowPropertyDataSet>
diff --git a/build/default_data/ILCD/flowproperties/62e503ce-544a-4599-b2ad-bcea15a7bf20.xml b/build/default_data/ILCD/flowproperties/62e503ce-544a-4599-b2ad-bcea15a7bf20.xml
new file mode 100644
index 0000000..1e6b439
--- /dev/null
+++ b/build/default_data/ILCD/flowproperties/62e503ce-544a-4599-b2ad-bcea15a7bf20.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<?xml-stylesheet href="../../stylesheets/flowproperty2html.xsl" type="text/xsl"?><flowPropertyDataSet xmlns="http://lca.jrc.it/ILCD/FlowProperty" xmlns:common="http://lca.jrc.it/ILCD/Common" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.1" xsi:schemaLocation="http://lca.jrc.it/ILCD/FlowProperty ../../schemas/ILCD_FlowPropertyDataSet.xsd">
+  <flowPropertiesInformation>
+    <dataSetInformation>
+      <common:UUID>62e503ce-544a-4599-b2ad-bcea15a7bf20</common:UUID>
+      <common:name xml:lang="en">Carbon content (biogenic)</common:name>
+      <common:synonyms xml:lang="en">C content (biogenic)</common:synonyms>
+      <classificationInformation>
+        <common:classification>
+          <common:class level="0">Chemical composition of flows</common:class>
+        </common:classification>
+      </classificationInformation>
+      <common:generalComment xml:lang="en">Reference Flow Property Data Set of the International Reference Life Cycle Data System (ILCD).</common:generalComment>
+    </dataSetInformation>
+    <quantitativeReference>
+      <referenceToReferenceUnitGroup refObjectId="93a60a57-a4c8-11da-a746-0800200c9a66" type="unit group data set" uri="../unitgroups/93a60a57-a4c8-11da-a746-0800200c9a66.xml">
+        <common:shortDescription xml:lang="en">Units of mass</common:shortDescription>
+      </referenceToReferenceUnitGroup>
+    </quantitativeReference>
+  </flowPropertiesInformation>
+  <modellingAndValidation>
+    <complianceDeclarations>
+      <compliance>
+        <common:referenceToComplianceSystem refObjectId="9ba3ac1e-6797-4cc0-afd5-1b8f7bf28c6a" type="source data set" uri="../sources/9ba3ac1e-6797-4cc0-afd5-1b8f7bf28c6a.xml">
+          <common:shortDescription>ILCD Data Network - compliance (non-Process)</common:shortDescription>
+        </common:referenceToComplianceSystem>
+        <common:approvalOfOverallCompliance>Fully compliant</common:approvalOfOverallCompliance>
+      </compliance>
+    </complianceDeclarations>
+  </modellingAndValidation>
+  <administrativeInformation>
+    <dataEntryBy>
+      <common:timeStamp>2012-01-04T15:33:14.875+01:00</common:timeStamp>
+      <common:referenceToDataSetFormat refObjectId="a97a0155-0234-4b87-b4ce-a45da52f2a40" type="source data set" uri="../sources/a97a0155-0234-4b87-b4ce-a45da52f2a40.xml">
+        <common:shortDescription>ILCD format</common:shortDescription>
+      </common:referenceToDataSetFormat>
+    </dataEntryBy>
+    <publicationAndOwnership>
+      <common:dataSetVersion>03.00.003</common:dataSetVersion>
+      <common:referenceToPrecedingDataSetVersion refObjectId="62e503ce-544a-4599-b2ad-bcea15a7bf20" type="flow property data set" uri="http://lca.jrc.ec.europa.eu/lcainfohub/datasets/ilcd/flowproperties/Carbon_content__biogenic__62e503ce-544a-4599-b2ad-bcea15a7bf20.xml">
+        <common:shortDescription xml:lang="en">Carbon content (biogenic)</common:shortDescription>
+      </common:referenceToPrecedingDataSetVersion>
+      <common:permanentDataSetURI>http://lca.jrc.ec.europa.eu/lcainfohub/datasets/ilcd/flowproperties/62e503ce-544a-4599-b2ad-bcea15a7bf20.xml</common:permanentDataSetURI>
+    </publicationAndOwnership>
+  </administrativeInformation>
+</flowPropertyDataSet>
diff --git a/build/default_data/ILCD/unitgroups/93a60a57-a4c8-11da-a746-0800200c9a66.xml b/build/default_data/ILCD/unitgroups/93a60a57-a4c8-11da-a746-0800200c9a66.xml
new file mode 100755
index 0000000..ee19709
--- /dev/null
+++ b/build/default_data/ILCD/unitgroups/93a60a57-a4c8-11da-a746-0800200c9a66.xml
@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><?xml-stylesheet type='text/xsl' href='../../stylesheets/unitgroup2html.xsl'?>
+
+<unitGroupDataSet xmlns="http://lca.jrc.it/ILCD/UnitGroup" xmlns:common="http://lca.jrc.it/ILCD/Common" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://lca.jrc.it/ILCD/UnitGroup ../../schemas/ILCD_UnitGroupDataSet.xsd" version="1.1">
+  <unitGroupInformation>
+    <dataSetInformation>
+      <common:UUID>93a60a57-a4c8-11da-a746-0800200c9a66</common:UUID>
+      <common:name xml:lang="en">Units of mass</common:name>
+      <common:name xml:lang="de">Masseeinheiten</common:name>
+      <classificationInformation>
+        <common:classification>
+          <common:class level="0">Technical unit groups</common:class>
+        </common:classification>
+      </classificationInformation>
+      <common:generalComment xml:lang="en">Reference Unit Group Data Set of the International Reference Life Cycle Data System (ILCD).</common:generalComment>
+    </dataSetInformation>
+    <quantitativeReference>
+      <referenceToReferenceUnit>0</referenceToReferenceUnit>
+    </quantitativeReference>
+  </unitGroupInformation>
+  <modellingAndValidation>
+    <complianceDeclarations>
+      <compliance>
+        <common:referenceToComplianceSystem type="source data set" uri="../sources/9ba3ac1e-6797-4cc0-afd5-1b8f7bf28c6a.xml" refObjectId="9ba3ac1e-6797-4cc0-afd5-1b8f7bf28c6a">
+          <common:shortDescription>ILCD Data Network - compliance (non-Process)</common:shortDescription>
+        </common:referenceToComplianceSystem>
+        <common:approvalOfOverallCompliance>Fully compliant</common:approvalOfOverallCompliance>
+      </compliance>
+    </complianceDeclarations>
+  </modellingAndValidation>
+  <administrativeInformation>
+    <dataEntryBy>
+      <common:timeStamp>2012-01-04T15:33:14.875+01:00</common:timeStamp>
+      <common:referenceToDataSetFormat type="source data set" uri="../sources/a97a0155-0234-4b87-b4ce-a45da52f2a40.xml" refObjectId="a97a0155-0234-4b87-b4ce-a45da52f2a40">
+        <common:shortDescription>ILCD format</common:shortDescription>
+      </common:referenceToDataSetFormat>
+    </dataEntryBy>
+    <publicationAndOwnership>
+      <common:dataSetVersion>03.00.000</common:dataSetVersion>
+      <common:referenceToPrecedingDataSetVersion type="unit group data set" refObjectId="93a60a57-a4c8-11da-a746-0800200c9a66"
+        uri="http://lca.jrc.ec.europa.eu/lcainfohub/datasets/ilcd/unitgroups/Units_of_mass_93a60a57-a4c8-11da-a746-0800200c9a66_02.00.000.xml">
+        <common:shortDescription xml:lang="en">Units of mass</common:shortDescription>
+      </common:referenceToPrecedingDataSetVersion>
+      <common:permanentDataSetURI>http://lca.jrc.ec.europa.eu/lcainfohub/datasets/ilcd/unitgroups/93a60a57-a4c8-11da-a746-0800200c9a66.xml</common:permanentDataSetURI>
+    </publicationAndOwnership>
+  </administrativeInformation>
+  <units>
+    <unit dataSetInternalID="0">
+      <name>kg</name>
+      <meanValue>1.0</meanValue>
+      <generalComment xml:lang="en">Kilogram</generalComment>
+    </unit>
+    <unit dataSetInternalID="1">
+      <name>t</name>
+      <meanValue>1000.0</meanValue>
+      <generalComment xml:lang="en">Metric ton</generalComment>
+    </unit>
+    <unit dataSetInternalID="2">
+      <name>lb av</name>
+      <meanValue>0.45359237</meanValue>
+      <generalComment xml:lang="en">British pound (avoirdupois)</generalComment>
+    </unit>
+    <unit dataSetInternalID="3">
+      <name>Mg</name>
+      <meanValue>1000.0</meanValue>
+      <generalComment xml:lang="en">Megagram = 1 metric ton</generalComment>
+    </unit>
+    <unit dataSetInternalID="4">
+      <name>kt</name>
+      <meanValue>2.0E-4</meanValue>
+      <generalComment xml:lang="en">Carat (metric)</generalComment>
+    </unit>
+    <unit dataSetInternalID="5">
+      <name>oz av</name>
+      <meanValue>0.028349523125</meanValue>
+      <generalComment xml:lang="en">Ounce (avoirdupois); commonly used, but NOT for gold, platinum etc. (see "Ounce (troy)")</generalComment>
+    </unit>
+    <unit dataSetInternalID="6">
+      <name>oz t</name>
+      <meanValue>0.0311034768</meanValue>
+      <generalComment xml:lang="en">Ounce (troy); ONLY used for gold, platinum etc.</generalComment>
+    </unit>
+    <unit dataSetInternalID="7">
+      <name>sh tn</name>
+      <meanValue>907.18474</meanValue>
+      <generalComment xml:lang="en">Short ton; some uses in US</generalComment>
+    </unit>
+    <unit dataSetInternalID="8">
+      <name>long tn</name>
+      <meanValue>1016.0469088</meanValue>
+      <generalComment xml:lang="en">Long ton; only used for displacement of ships</generalComment>
+    </unit>
+    <unit dataSetInternalID="9">
+      <name>g</name>
+      <meanValue>0.0010</meanValue>
+      <generalComment xml:lang="en">Gram</generalComment>
+    </unit>
+    <unit dataSetInternalID="10">
+      <name>mg</name>
+      <meanValue>1.0E-6</meanValue>
+      <generalComment xml:lang="en">Milligram; 1/1000 g</generalComment>
+    </unit>
+    <unit dataSetInternalID="11">
+      <name>ug</name>
+      <meanValue>1.0E-9</meanValue>
+      <generalComment xml:lang="en">Microgram; 1/1000000 g</generalComment>
+    </unit>
+    <unit dataSetInternalID="12">
+      <name>ng</name>
+      <meanValue>1.0E-12</meanValue>
+      <generalComment xml:lang="en">Nanogram; 1/1000000000 g</generalComment>
+    </unit>
+    <unit dataSetInternalID="13">
+      <name>pg</name>
+      <meanValue>1.0E-15</meanValue>
+      <generalComment xml:lang="en">Picogram; 10^-12 g</generalComment>
+    </unit>
+  </units>
+</unitGroupDataSet>