From 5bb399b22dca9220637bb0afa8030b45c6fb55ae Mon Sep 17 00:00:00 2001
From: Ian Bell <ian.h.bell@gmail.com>
Date: Fri, 22 Aug 2014 09:13:16 +0200
Subject: [PATCH] Fixed bug with REFPROP fluid loading (REFPROP bug?)

---
 src/Backends/REFPROP/REFPROPMixtureBackend.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Backends/REFPROP/REFPROPMixtureBackend.cpp b/src/Backends/REFPROP/REFPROPMixtureBackend.cpp
index e791c0d0..1746f69c 100644
--- a/src/Backends/REFPROP/REFPROPMixtureBackend.cpp
+++ b/src/Backends/REFPROP/REFPROPMixtureBackend.cpp
@@ -510,7 +510,7 @@ void REFPROPMixtureBackend::set_REFPROP_fluids(const std::vector<std::string> &f
         throw NotImplementedError("You cannot use the REFPROPMixtureBackend.");
     }
 
-    // Loop over the file names - first we try with .fld, then .ppf - means you can't mix and match
+    // Loop over the file names - first we try with nothing, then .fld, then .ppf - means you can't mix and match
 
     for (unsigned int k = 0; k < 3; k++)
     {
@@ -556,7 +556,7 @@ void REFPROPMixtureBackend::set_REFPROP_fluids(const std::vector<std::string> &f
             }
             else if (ierr > 0) // Error
             {
-                if (k < 2 && N == 1)
+                if (k < 2)
                     continue; // Allow us to use PPF if a pure fluid
                 else
                     throw ValueError(format("%s", herr));