diff --git a/BDNS_Abbreviations_Register.csv b/BDNS_Abbreviations_Register.csv
index 0c1b4de..9e6f047 100644
--- a/BDNS_Abbreviations_Register.csv
+++ b/BDNS_Abbreviations_Register.csv
@@ -607,8 +607,9 @@ switch - dew point,DEWSW,,IfcSwitchingDevice,HUMIDISTAT,1
 switch - differential pressure,DPSW,,IfcSwitchingDevice,PRESSURESENSOR,1
 switch - static pressure,SPSW,,IfcSwitchingDevice,PRESSURESENSOR,1
 switch - thermal dispersion flow proving switch,TDSW,,IfcSwitchingDevice,NOTDEFINED,1
-tank - break tank and booster set,BTBS,,IfcTank,BREAKPRESSURE,1
-tank - brine tank,BTK,,IfcTank,VESSEL,0
+tank - break tank,BTK,,IfcTank,BREAKPRESSURE,1
+tank - break tank and booster set,BTKBS,,IfcTank,BREAKPRESSURE,1
+tank - brine tank,BRITK,,IfcTank,VESSEL,0
 tank - buffer vessel - cooling,CBUFF,,IfcTank,VESSEL,0
 tank - buffer vessel - generic,BUFF,,IfcTank,VESSEL,0
 tank - buffer vessel - heating,HBUFF,,IfcTank,VESSEL,0