diff --git a/uom/unit_alias.py b/uom/unit_alias.py
index 0b68fe6..7a00553 100644
--- a/uom/unit_alias.py
+++ b/uom/unit_alias.py
@@ -83,6 +83,7 @@
     "lbm/galUS": "lbm/gal[US]",
     "1000 kgf": "Mgf",
     "KKGF": "Mgf",
+    "tf": "Mgf",
     "v": "V",
     "VOLT": "V",
     "Volts": "V",
@@ -107,7 +108,7 @@
     "°F": "degF",
     "RPM": "rpm",
     "KLBF": "klbf",
-    "KFLB": "klbf",
+    "KFLB": "klbf.ft",  # WITS thousand foot-pounds (torque)
     "G": "gn",
     "G's": "gn",
     "hr": "h",
@@ -162,7 +163,7 @@
     "degreesCelsius": "degC",
     "KNM": "kN.m",
     "KGM3": "kg/m3",
-    "KDN": "kdyne",
+    "KDN": "10 kN",  # WITS kilo deca Newton
     "RPG": "rev/gal[US]",
     "0.01 m3/m3": "0.01 bbl/bbl",
     "0.001/(ohm.m)": "mS",