Communications. Sources of error in the flame photometric determination of sodium and potassium in Portland cements

Abstract

Material for publication as a Communication must be on a n urgent matter and be of obvious scientijk importance. Rapidity of publication is enhanced if diagrams are omitted, but tables and formulae can be included. Conamunications should not be simple claims for priority: this facility for rapid publication i s intended for brief descriptions of work that has progressed to a stage at which it i s likely to be valuable to workers faced with similar problems. A fuller paper ynny be offered subsequently, if justilfied by later work.Manuscvipts are not subjected to the usual examination by refevees and inclusion of a Communication is at the Editor's discyetion.