TY - RPRT TI - Standard Reference Materials : Tin freezing-point standard - SRM 741a/ AU - Moiseeva, Natalia P AU - Strouse, Gregory F PY - 1999 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260-138 DO - 10.6028/NIST.SP.260-138 ER -