diff --git a/inst/extdata/database/tedfs/Tech/Iron Direct Reduction.csv b/inst/extdata/database/tedfs/Tech/Iron Direct Reduction.csv
index 516e32fa..92416ce0 100644
--- a/inst/extdata/database/tedfs/Tech/Iron Direct Reduction.csv	
+++ b/inst/extdata/database/tedfs/Tech/Iron Direct Reduction.csv	
@@ -3,14 +3,14 @@ mode,variable,reference_variable,period,component,value,uncertainty,unit,referen
 *,CAPEX,Output Capacity|Directly Reduced Iron,2022,#,414.0,,EUR_2013,1.0,t/a,"This reference assumes the value provided by Wörtler et al., 2013 but with an additional integration factor of 1.8.",AgoraEnergiewende22,Abbildung 24 and 25
 *,CAPEX,Output Capacity|Directly Reduced Iron,2021,#,605.9,,MEUR_2020,1905400.0,t/a,Note that the reference value is not 2 Mt but ~1.9 Mt as per flow data presented in Table 2.,Jacobasch21,"Page 9, Table 6"
 *,OPEX Fixed Relative,,2022,#,3.0,,percent,,,,AgoraEnergiewende22,
-h2,Input|Hydrogen,Output|Directly Reduced Iron,2022,#,541.0,,m³;norm,1.1,t,"This source states 541 Nm³ of hydrogen per tonne of steel, but does not state how much DRI it assumes per steel. The conversion factor from Devlin et al, 2022 of 1.1 DRI/tSteel is therefore used.",AgoraEnergiewende22,Tabelle 12
+h2,Input|Hydrogen,Output|Directly Reduced Iron,2022,#,541.0,,m³;std,1.1,t,"This source states 541 Nm³ of hydrogen per tonne of steel, but does not state how much DRI it assumes per steel. The conversion factor from Devlin et al, 2022 of 1.1 DRI/tSteel is therefore used.",AgoraEnergiewende22,Tabelle 12
 h2,Input|Hydrogen,Output|Directly Reduced Iron,2022,#,52.0,,kg,1.1,t,"This source states 52 kg of hydrogen per tonne of semi-finished steel, and 1.1 tonnes of HBI per tonne of semi-finished steel, hence resulting in 52×0.909 kg of hydrogen per tonne of HBI.",Devlin22,Section 2.2.2
-h2,Input|Hydrogen,Output|Directly Reduced Iron,2017,#,635.0,,m³;norm,1.0,t,,Holling17,Just before Table 1
+h2,Input|Hydrogen,Output|Directly Reduced Iron,2017,#,635.0,,m³;std,1.0,t,,Holling17,Just before Table 1
 h2,Input|Hydrogen,Output|Directly Reduced Iron,2017,#,58.17,,kg,1.03,t,This source states 58.17 kg of hydrogen per 1.03 tonnes of iron sponge.,Otto17,Figure 6
-h2,Input|Hydrogen,Output|Directly Reduced Iron,2020,Reduction agent,504.5,20.5,m³;norm,1.0,t,Only the value reported for the hydrogen needed as a reduction agent is mentioned. The remaining hydrogen is instead reported here as heat.,Rechenberger20,Section 4.2
-h2,Input|Hydrogen,Output|Directly Reduced Iron,2020,Reduction agent,503.5,21.5,m³;norm,1.0,t,Only the value reported for the hydrogen needed as a reduction agent is mentioned. The remaining hydrogen is instead reported here as heat.,Sasiain20,"Results and Discussion, 8th paragraph"
-h2,Input|Hydrogen,Output|Directly Reduced Iron,2020,Heat,242.0,,m³;norm,1.0,t,This is the hydrogen not used as a reduction agent but instead as a heat source.,Rechenberger20,Section 4.2
-h2,Input|Hydrogen,Output|Directly Reduced Iron,2020,Heat,242.0,,m³;norm,1.0,t,This is the hydrogen not used as a reduction agent but instead as a heat source.,Sasiain20,"Results and Discussion, 8th paragraph"
+h2,Input|Hydrogen,Output|Directly Reduced Iron,2020,Reduction agent,504.5,20.5,m³;std,1.0,t,Only the value reported for the hydrogen needed as a reduction agent is mentioned. The remaining hydrogen is instead reported here as heat.,Rechenberger20,Section 4.2
+h2,Input|Hydrogen,Output|Directly Reduced Iron,2020,Reduction agent,503.5,21.5,m³;std,1.0,t,Only the value reported for the hydrogen needed as a reduction agent is mentioned. The remaining hydrogen is instead reported here as heat.,Sasiain20,"Results and Discussion, 8th paragraph"
+h2,Input|Hydrogen,Output|Directly Reduced Iron,2020,Heat,242.0,,m³;std,1.0,t,This is the hydrogen not used as a reduction agent but instead as a heat source.,Rechenberger20,Section 4.2
+h2,Input|Hydrogen,Output|Directly Reduced Iron,2020,Heat,242.0,,m³;std,1.0,t,This is the hydrogen not used as a reduction agent but instead as a heat source.,Sasiain20,"Results and Discussion, 8th paragraph"
 h2,Input|Hydrogen,Output|Directly Reduced Iron,2018,#,51.0,,kg,1.08,t,This source reports its values per tonne of steel. We assume 1.08 tonnes of HBI used per tonne of steel (calculated from 95% Fe2O3 in 1.504 tonnes of iron ore) and divide by that factor.,Vogl18,Section 3
 h2,Input|Hydrogen,Output|Directly Reduced Iron,2021,#,115742.31,,t,1744694.39,t,,Jacobasch21,"Page 6, Table 2"
 h2,Input|Heat,Output|Directly Reduced Iron,2022,#,0.0,,MWh,1.0,t,This source does not assume any additional heat demand for the direct reduction other than the hydrogen and natural gas used in the process.,AgoraEnergiewende22,
@@ -18,9 +18,9 @@ h2,Input|Heat,Output|Directly Reduced Iron,2022,#,0.45,,MWh,1.1,t,"This source s
 h2,Input|Heat,Output|Directly Reduced Iron,2017,#,0.23,,MWh,1.0,t,,Holling17,Just before Table 1
 h2,Input|Heat,Output|Directly Reduced Iron,2017,#,5.62,,GJ,1.03,t,This source states 5.62 GJ of NG demand for heat provision per 1.03 tonnes of iron sponge.,Otto17,Figure 6
 h2,Input|Heat,Output|Directly Reduced Iron,2018,#,0.286,,MWh,1.08,t,The value 0.286 was read off from the graph and corresponds to the ore heating for 100% HBI. This source reports its values per tonne of steel. We assume 1.08 tonnes of HBI used per tonne of steel (calculated from 95% Fe2O3 in 1.504 tonnes of iron ore) and divide by that factor.,Vogl18,Figure 2
-h2,Input|Fossil Gas,Output|Directly Reduced Iron,2022,#,50.0,,m³;norm,1.1,t,"This source states 50 Nm³ of natural gas per tonne of steel, but does not state how much DRI it assumes per steel. The conversion factor from Devlin et al, 2022 of 1.1 DRI/tSteel is therefore used.",AgoraEnergiewende22,Tabelle 12
-h2,Input|Fossil Gas,Output|Directly Reduced Iron,2020,#,48.0,,m³;norm,1.0,t,This source assumes a natural-gas demand to provide not only heat but also the carbon content of the DRI.,Rechenberger20,Section 4.2
-h2,Input|Fossil Gas,Output|Directly Reduced Iron,2020,#,48.0,,m³;norm,1.0,t,This source assumes a natural-gas demand to provide not only heat but also the carbon content of the DRI.,Sasiain20,"Results and Discussion, 8th paragraph"
+h2,Input|Fossil Gas,Output|Directly Reduced Iron,2022,#,50.0,,m³;std,1.1,t,"This source states 50 Nm³ of natural gas per tonne of steel, but does not state how much DRI it assumes per steel. The conversion factor from Devlin et al, 2022 of 1.1 DRI/tSteel is therefore used.",AgoraEnergiewende22,Tabelle 12
+h2,Input|Fossil Gas,Output|Directly Reduced Iron,2020,#,48.0,,m³;std,1.0,t,This source assumes a natural-gas demand to provide not only heat but also the carbon content of the DRI.,Rechenberger20,Section 4.2
+h2,Input|Fossil Gas,Output|Directly Reduced Iron,2020,#,48.0,,m³;std,1.0,t,This source assumes a natural-gas demand to provide not only heat but also the carbon content of the DRI.,Sasiain20,"Results and Discussion, 8th paragraph"
 h2,Input|Electricity,Output|Directly Reduced Iron,2022,#,0.065,,MWh,1.1,t,"This source states 0.065 MWh of electricity for H2 compression per tonne of liquid steel, and 1.1 tonnes of HBI per tonne of semi-finished steel, hence resulting in 0.065×0.909 MWh of electricity per tonne of HBI.",Devlin22,Section 2.2.2
 h2,Input|Electricity,Output|Directly Reduced Iron,2017,#,0.08,,MWh,1.0,t,,Holling17,Just before Table 1
 h2,Input|Electricity,Output|Directly Reduced Iron,2017,#,0.46,,GJ,1.03,t,This source states 0.46 GJ of electric power per 1.03 tonnes of iron sponge.,Otto17,Figure 6