TY - GEN AU - Kuchinski, Madeline A AU - Hubbard, Camden R AU - Robbins, Carl C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1988-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.88-3742 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1988 TI - Certification of SRM 1879 respirable cristobalite as a quantitative x-ray diffraction SRM: ER -