diff --git a/modules/c++/hdf5.lite/include/hdf5/lite/HDF5Exception.h b/modules/c++/hdf5.lite/include/hdf5/lite/HDF5Exception.h
index 74079b59e..3428f752c 100644
--- a/modules/c++/hdf5.lite/include/hdf5/lite/HDF5Exception.h
+++ b/modules/c++/hdf5.lite/include/hdf5/lite/HDF5Exception.h
@@ -46,9 +46,9 @@ namespace lite
  */
 CODA_OSS_DECLARE_EXCEPTION(HDF5);
 
-CODA_OSS_DECLARE_EXTENDED_EXCEPTION(DataSet, hdf5::lite::HDF5Exception)
-CODA_OSS_DECLARE_EXTENDED_EXCEPTION(DataSpace, hdf5::lite::HDF5Exception)
-CODA_OSS_DECLARE_EXTENDED_EXCEPTION(DataType, hdf5::lite::HDF5Exception)
+CODA_OSS_DECLARE_EXTENDED_EXCEPTION(Dataset, hdf5::lite::HDF5Exception)
+CODA_OSS_DECLARE_EXTENDED_EXCEPTION(Dataspace, hdf5::lite::HDF5Exception)
+CODA_OSS_DECLARE_EXTENDED_EXCEPTION(Datatype, hdf5::lite::HDF5Exception)
 
 }
 }
diff --git a/modules/c++/hdf5.lite/source/Read.cpp b/modules/c++/hdf5.lite/source/Read.cpp
index f7a462b01..1598d3a90 100644
--- a/modules/c++/hdf5.lite/source/Read.cpp
+++ b/modules/c++/hdf5.lite/source/Read.cpp
@@ -33,31 +33,35 @@
 
 static void read(const H5::DataSet& dataset, std::vector<double>& result)
 {
+    static_assert(sizeof(double) * 8 == 64, "'double' should be 64-bits"); // IEEE_F64LE
+
     const auto mem_type = dataset.getDataType();
-    if (mem_type != H5::PredType::NATIVE_DOUBLE)
+    if (mem_type != H5::PredType::IEEE_F64LE)
     {
-        const except::Context context("mem_type != IEEE_F64LE", __FILE__, __LINE__, "read");
-        throw hdf5::lite::DataSetException(context);
+        const except::Context context("getDataType() != IEEE_F64LE", __FILE__, __LINE__, "read");
+        throw hdf5::lite::DatasetException(context);
     }
     dataset.read(result.data(), mem_type);
 }
 static void read(const H5::DataSet& dataset, std::vector<float>& result)
 {
+    static_assert(sizeof(float) * 8 == 32, "'float' should be 32-bits"); // IEEE_F32LE
+
     const auto mem_type = dataset.getDataType();
-    if (mem_type != H5::PredType::NATIVE_FLOAT)
+    if (mem_type != H5::PredType::IEEE_F32LE)
     {
-        const except::Context context("mem_type != IEEE_F32LE", __FILE__, __LINE__, "read");
-        throw hdf5::lite::DataSetException(context);
+        const except::Context context("getDataType() != IEEE_F32LE", __FILE__, __LINE__, "read");
+        throw hdf5::lite::DatasetException(context);
     }
     dataset.read(result.data(), mem_type);
 }
 template<typename T>
-static types::RowCol<size_t> readDatasetT(const H5::DataSet& dataset, H5T_class_t type_class,
-    std::vector<T>& result)
+static types::RowCol<size_t> readDatasetT(const H5::DataSet& dataset, std::vector<T>& result)
 {
-    if (type_class != dataset.getTypeClass())
+    if (dataset.getTypeClass() != H5T_FLOAT)
     {
-        throw std::invalid_argument("getTypeClass() returned wrong value.");
+        const except::Context context("getTypeClass() != H5T_FLOAT", __FILE__, __LINE__, "readDatasetT");
+        throw hdf5::lite::DatatypeException(context);
     }    
 
     const auto retval = hdf5::lite::details::getSimpleExtentSize(dataset);
@@ -72,13 +76,11 @@ static types::RowCol<size_t> readDatasetT(const H5::DataSet& dataset, H5T_class_
 
 inline types::RowCol<size_t> readDataset_(const H5::DataSet& dataset, std::vector<float>& result)
 {
-    static_assert(sizeof(float) * 8 == 32, "'float' should be 32-bits"); // IEEE_F32LE
-    return readDatasetT(dataset, H5T_FLOAT, result);
+    return readDatasetT(dataset, result);
 }
 inline types::RowCol<size_t> readDataset_(const H5::DataSet& dataset, std::vector<double>& result)
 {
-    static_assert(sizeof(double) * 8 == 64, "'double' should be 64-bits"); // IEEE_F64LE
-    return readDatasetT(dataset, H5T_FLOAT, result);
+    return readDatasetT(dataset, result);
 }
 template<typename T>
 static types::RowCol<size_t> readFile_(const coda_oss::filesystem::path& fileName, const std::string& datasetName,
diff --git a/modules/c++/hdf5.lite/source/hdf5.lite.cpp b/modules/c++/hdf5.lite/source/hdf5.lite.cpp
index 609e6da30..2493de79f 100644
--- a/modules/c++/hdf5.lite/source/hdf5.lite.cpp
+++ b/modules/c++/hdf5.lite/source/hdf5.lite.cpp
@@ -49,18 +49,18 @@ void hdf5::lite::details::try_catch_H5Exceptions_(std::function<void(void*)> f,
     // catch failure caused by the DataSet operations
     catch (const H5::DataSetIException& error)
     {
-        throw hdf5::lite::DataSetException(make_Context(error, file, line));
+        throw hdf5::lite::DatasetException(make_Context(error, file, line));
     }
 
     // catch failure caused by the DataSpace operations
     catch (const H5::DataSpaceIException& error)
     {
-        throw hdf5::lite::DataSpaceException(make_Context(error, file, line));
+        throw hdf5::lite::DataspaceException(make_Context(error, file, line));
     }
 
     // catch failure caused by the DataType operations
     catch (const H5::DataTypeIException& error)
     {
-        throw hdf5::lite::DataTypeException(make_Context(error, file, line));
+        throw hdf5::lite::DatatypeException(make_Context(error, file, line));
     }
 }
diff --git a/modules/c++/hdf5.lite/unittests/test_hdf5read.cpp b/modules/c++/hdf5.lite/unittests/test_hdf5read.cpp
index 9abc451e3..9d7b05a76 100644
--- a/modules/c++/hdf5.lite/unittests/test_hdf5read.cpp
+++ b/modules/c++/hdf5.lite/unittests/test_hdf5read.cpp
@@ -119,7 +119,7 @@ TEST_CASE(test_hdf5Read_nested_small_wrongType)
     std::vector<double> data; 
     TEST_SPECIFIC_EXCEPTION(
         hdf5::lite::readFile(path, "/Data/1/bar/cat/a/r", data),
-        hdf5::lite::DataSetException);
+        hdf5::lite::DatasetException);
 }
 
 TEST_MAIN(