Index: leahi_dialin/common/dd_defs.py
===================================================================
diff -u -rbebba1d868f26b10c5cc045fbcb7ca2b067267a6 -r36b34b8458cfce3518ba08d73f2747b8011c462d
--- leahi_dialin/common/dd_defs.py	(.../dd_defs.py)	(revision bebba1d868f26b10c5cc045fbcb7ca2b067267a6)
+++ leahi_dialin/common/dd_defs.py	(.../dd_defs.py)	(revision 36b34b8458cfce3518ba08d73f2747b8011c462d)
@@ -330,3 +330,10 @@
     D70_VALV = 26               # Ultrafiltration Valve 1 Outlet (D70)
     D72_VALV = 27               # Ultrafiltration Valve 2 Outlet (D72)
     NUM_OF_DD_VALVES = 28       # Number of Valves for the DD
+
+@unique
+class DDAcidCompositionNames(DialinEnum):
+    ACID_08_1251_1 = 0          # Acid type 08-1251-1
+    ACID_08_2251_0 = 1          # Acid type 08-2251-0
+    ACID_08_3251_9 = 2          # Acid type 08-3251-9
+    NUM_OF_ACID_TYPE = 3        # Number of Acid Types
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