diff --git a/mesures/f3.py b/mesures/f3.py
index 98f75d6..16d3543 100644
--- a/mesures/f3.py
+++ b/mesures/f3.py
@@ -99,9 +99,9 @@ def reader(self, filepath):
                 'ae': 'sum'
             }
         ).reset_index()
-        # TODO review obtencion and firmeza
-        df['method'] = 1
-        df['firmeza'] = 1
+        df['firmeza'] = df.apply(lambda row: 1 if row['method'] in (1, 3) else 0, axis=1)
+        # TODO Review method
+
         df = df[columns]
         return df