free silica

基本解釋

A method for chemical phase analysis of free silica in limestone was discussed in this paper.
介紹了石灰?guī)r中游離二氧化硅的化學(xué)物相分析方法。
Free silica in geological exploration dust is measured by both Xray diffraction and pyrophosphoric acid methods.
對(duì)粉塵中游離二氧化硅含量進(jìn)行了X線衍射法和焦磷酸消化法的對(duì)比測(cè)定。
Basic principle, experiment condition, operating process, method and steps of X-ray diffraction method to determine free silica content of respirable dust in mines are introduced in this paper.
本文介紹了應(yīng)用X射線衍射儀測(cè)定礦山呼吸性粉塵中游離二氧化硅含量的基本原理、實(shí)驗(yàn)條件以及操作過程、方法步驟等。