Index: sources/gui/qml/globals/Variables.qml
===================================================================
diff -u -r0975a67dd4e4673b9a7b226bfea02cbfa489c418 -r3365ef23a278ef93f2bf6ff10b5637ad4f1b9d83
--- sources/gui/qml/globals/Variables.qml	(.../Variables.qml)	(revision 0975a67dd4e4673b9a7b226bfea02cbfa489c418)
+++ sources/gui/qml/globals/Variables.qml	(.../Variables.qml)	(revision 3365ef23a278ef93f2bf6ff10b5637ad4f1b9d83)
@@ -270,6 +270,9 @@
     // weight
     readonly property int   weightPrecision         : 1
 
+    // water sample
+    readonly property int   waterSamplePrecision    : 1
+
     function sizeConverted(vSize, vSizePowers, vRound = 2) {
         return (  vSize
                 / vSizePowers   // convert from byte to Giga byte
@@ -340,5 +343,6 @@
     // Concentration
     readonly property string unitTextConcentration          : qsTr("mEq/L")
     readonly property string unitTextHeparinConcentration   : qsTr("IU/mL")
-
+    // - hepatitis
+    readonly property string unitHepatitis                  : qsTr("HbsAg")
 }