TY - GEN AU - Robert E Michaelis AU - Robert L Myklebust AU - Kurt F J Heinrich C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1971-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.260-28 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1971 TI - Standard Reference Materials:Preparation and evaluation of SRM's 481 and 482 gold-silver and gold-copper alloys for microanalysis ER -