TY - RPRT TI - Standard Reference Materials : feasibility study for the development of standards using differential scanning calorimetry/ AU - Sullivan, Sandra A AU - Callanan, Jane E PY - 1985 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NBS SP 260-99 DO - 10.6028/NBS.SP.260-99 ER -