diff --git a/test_problems/ChemEquil_ionizedGas/ionizedGasEquil.cpp b/test_problems/ChemEquil_ionizedGas/ionizedGasEquil.cpp
index da9d7ec08c..6fe28a377f 100644
--- a/test_problems/ChemEquil_ionizedGas/ionizedGasEquil.cpp
+++ b/test_problems/ChemEquil_ionizedGas/ionizedGasEquil.cpp
@@ -11,9 +11,6 @@ using namespace Cantera;
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     try {
         auto sol = newSolution("air_below6000K.yaml");
         auto gas = sol->thermo();
diff --git a/test_problems/CpJump/CpJump.cpp b/test_problems/CpJump/CpJump.cpp
index f5ce73ce4b..db6938d6f9 100644
--- a/test_problems/CpJump/CpJump.cpp
+++ b/test_problems/CpJump/CpJump.cpp
@@ -14,9 +14,6 @@ using namespace Cantera;
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     try {
         auto sol = newSolution("bad_air.yaml");
         auto gas = sol->thermo();
diff --git a/test_problems/VCSnonideal/NaCl_equil/nacl_equil.cpp b/test_problems/VCSnonideal/NaCl_equil/nacl_equil.cpp
index 392303b1bf..e3eb900061 100644
--- a/test_problems/VCSnonideal/NaCl_equil/nacl_equil.cpp
+++ b/test_problems/VCSnonideal/NaCl_equil/nacl_equil.cpp
@@ -24,9 +24,6 @@ void printUsage()
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     suppress_deprecation_warnings();
     int numSucc = 0;
     int numFail = 0;
diff --git a/test_problems/cathermo/HMW_test_1/HMW_test_1.cpp b/test_problems/cathermo/HMW_test_1/HMW_test_1.cpp
index 5b86b298d2..4e99f82fa2 100644
--- a/test_problems/cathermo/HMW_test_1/HMW_test_1.cpp
+++ b/test_problems/cathermo/HMW_test_1/HMW_test_1.cpp
@@ -31,9 +31,6 @@ void pAtable(HMWSoln* HMW)
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     int retn = 0;
 
     try {
diff --git a/test_problems/cathermo/HMW_test_3/HMW_test_3.cpp b/test_problems/cathermo/HMW_test_3/HMW_test_3.cpp
index 0359ba538d..8a0ea2c6cf 100644
--- a/test_problems/cathermo/HMW_test_3/HMW_test_3.cpp
+++ b/test_problems/cathermo/HMW_test_3/HMW_test_3.cpp
@@ -31,9 +31,6 @@ void pAtable(HMWSoln* HMW)
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
 
     int retn = 0;
     try {
diff --git a/test_problems/cathermo/VPissp/ISSPTester.cpp b/test_problems/cathermo/VPissp/ISSPTester.cpp
index 0e30f3c12f..748b7c3305 100644
--- a/test_problems/cathermo/VPissp/ISSPTester.cpp
+++ b/test_problems/cathermo/VPissp/ISSPTester.cpp
@@ -21,9 +21,6 @@ using namespace Cantera;
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
 
     try {
         double Tkelvin = 1200.;
diff --git a/test_problems/cathermo/ims/IMSTester.cpp b/test_problems/cathermo/ims/IMSTester.cpp
index 837e238b67..fb4896d789 100644
--- a/test_problems/cathermo/ims/IMSTester.cpp
+++ b/test_problems/cathermo/ims/IMSTester.cpp
@@ -20,9 +20,6 @@ using namespace Cantera;
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
 
     try {
         double Tkelvin = 298.15;
diff --git a/test_problems/cathermo/issp/ISSPTester.cpp b/test_problems/cathermo/issp/ISSPTester.cpp
index e2994fd1b6..8ce6f61892 100644
--- a/test_problems/cathermo/issp/ISSPTester.cpp
+++ b/test_problems/cathermo/issp/ISSPTester.cpp
@@ -21,9 +21,6 @@ using namespace Cantera;
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
 
     try {
         double Tkelvin = 1200.;
diff --git a/test_problems/cathermo/testWaterPDSS/testWaterPDSS.cpp b/test_problems/cathermo/testWaterPDSS/testWaterPDSS.cpp
index 9816bd9306..8a776342af 100644
--- a/test_problems/cathermo/testWaterPDSS/testWaterPDSS.cpp
+++ b/test_problems/cathermo/testWaterPDSS/testWaterPDSS.cpp
@@ -18,9 +18,6 @@ double tvalue(double val, double atol = 1.0E-9)
 
 int main()
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     double pres;
     try {
         Cantera::PDSS_Water* w = new PDSS_Water();
diff --git a/test_problems/cathermo/testWaterTP/testWaterSSTP.cpp b/test_problems/cathermo/testWaterTP/testWaterSSTP.cpp
index b1c07e8d23..c60d744b26 100644
--- a/test_problems/cathermo/testWaterTP/testWaterSSTP.cpp
+++ b/test_problems/cathermo/testWaterTP/testWaterSSTP.cpp
@@ -16,9 +16,6 @@ double tvalue(double val, double atol = 1.0E-9)
 
 int main()
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     double pres;
     try {
         auto w = newThermo("liquidvapor.yaml", "liquid-water-IAPWS95");
diff --git a/test_problems/diamondSurf/runDiamond.cpp b/test_problems/diamondSurf/runDiamond.cpp
index d9022abc29..c8c33f67ed 100644
--- a/test_problems/diamondSurf/runDiamond.cpp
+++ b/test_problems/diamondSurf/runDiamond.cpp
@@ -12,9 +12,6 @@ using namespace Cantera;
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     int i, k;
 
     try {
diff --git a/test_problems/mixGasTransport/mixGasTransport.cpp b/test_problems/mixGasTransport/mixGasTransport.cpp
index 46e366cbe5..bd72e44018 100644
--- a/test_problems/mixGasTransport/mixGasTransport.cpp
+++ b/test_problems/mixGasTransport/mixGasTransport.cpp
@@ -31,9 +31,6 @@ using namespace Cantera;
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     try {
         auto sol = newSolution("gri30.yaml", "gri30", "Mix");
         auto gas = sol->thermo();
diff --git a/test_problems/multiGasTransport/multiGasTransport.cpp b/test_problems/multiGasTransport/multiGasTransport.cpp
index 7e074857a0..0820b25e59 100644
--- a/test_problems/multiGasTransport/multiGasTransport.cpp
+++ b/test_problems/multiGasTransport/multiGasTransport.cpp
@@ -39,9 +39,6 @@ static double cutoff(double val, double atol=1.0E-15)
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     try {
         auto sol = newSolution("gri30.yaml", "gri30", "Multi");
         auto gas = sol->thermo();
diff --git a/test_problems/pureFluidTest/testPureWater.cpp b/test_problems/pureFluidTest/testPureWater.cpp
index f5072dfb7e..0a445cb138 100644
--- a/test_problems/pureFluidTest/testPureWater.cpp
+++ b/test_problems/pureFluidTest/testPureWater.cpp
@@ -18,9 +18,6 @@ double tvalue(double val, double atol = 1.0E-9)
 
 int main()
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     double pres;
     try {
 
diff --git a/test_problems/surfSolverTest/surfaceSolver.cpp b/test_problems/surfSolverTest/surfaceSolver.cpp
index d292c90163..1d12de8687 100644
--- a/test_problems/surfSolverTest/surfaceSolver.cpp
+++ b/test_problems/surfSolverTest/surfaceSolver.cpp
@@ -132,9 +132,6 @@ void printSurf(ostream& oooo,
 
 int main(int argc, char** argv)
 {
-#if defined(_MSC_VER) && _MSC_VER < 1900
-    _set_output_format(_TWO_DIGIT_EXPONENT);
-#endif
     string infile = "haca2.yaml";
     string gasPhaseName = "gas";
     string bulkParticlePhaseName = "soot";