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Differential Scanning Calorimetry

Differential Scanning Calorimetry

The Differential Scanning Calorimetry (DSC) test determines thermodynamic events such as melting point, glass transition temperatures, crystallization temperatures and other phase changes. This test is performed on polymers and liquids. It is used for material characterization, lot to lot comparisons and sample purity.

Testing meets the criteria set forth in USP General Chapter 32 and the National Formulary 27, 891. Nelson Laboratories offers fast, accurate and dependable DSC testing services.

Applicable Standards

  • ISO 10993-12
  • ISO 10993-18

Test Options

Ask an expert for a specific consultation on your product. If you are ready to submit your samples for testing, click here to fill out the Sample Submission Form.

Code Test Request Quote
DSC101 Differential Scanning Calorimetry (DSC) w/ sample preparation Add
DSC105 Differential Scanning Calorimetry (DSC), repeat scan w/ thermal cycle, each Add
DSC101 - Differential Scanning Calorimetry (DSC) w/ sample preparation
DSC105 - Differential Scanning Calorimetry (DSC), repeat scan w/ thermal cycle, each

Sample Specifications

DSC101: 5-20 mg

Study Outline

The Differential Scanning Calorimetry (DSC) test uses a thermoanalytical technique in which the difference in the amount of heat required to increase the temperature of a sample and reference are measured as a function of temperature. Both the sample and reference are maintained at nearly the same temperature throughout the experiment. The operational range of our instrument is ambient to 500°C.

Generally, the temperature program for a DSC analysis is designed such that the sample holder temperature increases linearly as a function of time. The reference sample should have a well-defined heat capacity over the range of temperatures to be scanned.

The main application of DSC is in studying phase transitions, such as melting, glass transitions, crystallizations and exothermic decompositions, with each of their temperatures and energies. These transitions involve energy changes or heat capacity changes that can be detected by DSC with great sensitivity.

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