diff --git a/documentation/source/developers/introduction.rst b/documentation/source/developers/introduction.rst
index 9ab776035c..43cdd62626 100644
--- a/documentation/source/developers/introduction.rst
+++ b/documentation/source/developers/introduction.rst
@@ -4,6 +4,16 @@ Introduction
 
 The :mod:`rmgpy` package contains all of the functionality of RMG.
 
+RMG-Py naming conventions in brief:
+
+* module names are in lowercase 
+* Class and Exception names start with capital letters (e.g., CamelCase)
+* all instances of Classes are mixed-case and begin with lower-case letters (e.g., camelCase)
+
+
+ `Python style guide <http://www.python.org/dev/peps/pep-0008/>`_. In general, refer to this for guidance.
+
+
 Dependencies
 ============
 
diff --git a/rmgpy/transportDataTest.py b/rmgpy/transportDataTest.py
index 095976cb0b..12981e4c2e 100644
--- a/rmgpy/transportDataTest.py
+++ b/rmgpy/transportDataTest.py
@@ -120,8 +120,8 @@ def test_getCollisionFrequency(self):
         M = P / constants.R / T
         mu = 1.0
         omega = self.transport.getCollisionFrequency(T, M, mu)
-        self.assertAlmostEqual(omega / 3.13010e10, 1.0, 4)
-
+        self.assertAlmostEqual(omega / 1.17737e10, 1.0, 4)
+ 
     def test_pickle(self):
         """
         Test that a TransportData object can be pickled and unpickled with no loss of information.