TY - RPRT TI - Circular of the Bureau of Standards no. 373: recommended specifications for quicklime for use in the distillation of ammonia for ammonia liquors obtained in coke and gas manufacture PY - 1928 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS CIRC 373 DO - 10.6028/NBS.CIRC.373 ER -