TY - GEN AU - Mandel, John AU - Moody, John R AU - Paule, Robert C AU - Velapoldi, Rance A C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1978-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.260-60 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1978 TI - Standard Reference Materials:A reference method for the determination of sodium in serum ER -