The 8-correction approach has great advantages: it takes the best from the numerical correction methods, and leaves behind most of their inconveniences; it is simple to apply and very accurate; it is particularly well suited to the analysis of industrial products where composition variations are usually not very large. The authors believe that the 8 method will be in common use in the near future. A paper on the analysis of cements appears in this Journal (11); although that paper is not intended to be a typical example of application of the 6 method, it nevertheless shows that the method offers definite advantages in relation with accuracy and simplicity. KATANAX K1全自動(dòng)電熱融熔機(jī) KATANAX K2全自動(dòng)電熱融熔機(jī)