Index: firmware/App/TDCommon.h
===================================================================
diff -u -re48e6aa00d8623016a73f30ef1743e9a2f7db593 -re9e339870c5ed01230963f00d400331ab879c91f
--- firmware/App/TDCommon.h	(.../TDCommon.h)	(revision e48e6aa00d8623016a73f30ef1743e9a2f7db593)
+++ firmware/App/TDCommon.h	(.../TDCommon.h)	(revision e9e339870c5ed01230963f00d400331ab879c91f)
@@ -7,8 +7,8 @@
 *
 * @file    TDCommon.h
 *
-* @author  (last)      Dara Navaei
-* @date    (last)      06-Mar-2026
+* @author  (last)      Raghu Kallala
+* @date    (last)      29-Apr-2026
 *
 * @author  (original)  Sean Nash
 * @date    (original)  01-Aug-2024
@@ -121,6 +121,8 @@
 
 // **** Common Macros ****
 
+#define BICARBONATE_CONVERSION_FACTOR    0.07337F    ///< Bicarbonate conversion factor mS/cm per mmol/L  //TODO move to institutional records and update the usage with get API call
+
 /**@}*/
 
 // **** VectorCAST Definitions ****