ASTM D4517用无焰原子吸收光谱法测量高纯度水中低量硅总量的标准试验方法
日期:2012-02-07 16:00
fficiency.
Colloidal silica that is not removed by boiler water pretreatment processes may be solubilized in the boiler and thus contribute to the dissolved silica concentration in the boiler. Both dissolved and total silica are of interest.
1. Scope
1.1 This test method covers the determination of total silica in water.
1.2 This test method is applicable in the range from 25 to 250 g/L of silica as SiO2. Higher concentrations may be determined by decreasing the aliquot volume (see Note 6). Conc
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