工业用盐酸 可溶性硫酸盐的测定 比浊法

[中文适用范围]： 比浊法适用于可溶性硫酸盐含量低于 0.1% (m/m) 的产品。 其原理是将测试部分蒸发至干并将残余物溶解在盐酸中。 在明确的条件下通过硫酸钡沉淀来测量浊度。 也得到了 IUPAC 的批准。 [外文原描述]： The turbidimetric method is applicable to products containing less than 0.1 % (m/m) of soluble sulphates. The principle consists in evaporation of a test portion to dryness and solution of the residue in hydrochloric acid. Measurement of the turbidity obtained by precipitation, under well defined conditions, of barium sulphate. Has also been approved by the IUPAC.