标准摘要
[中文适用范围]： 考虑两种情况：硫酸含量等于或低于98%(m/m)和硫酸含量高于98%(m/m)。 其原理是在甲基红作为指示剂的情况下，用过氧化氢氧化测试部分并用标准容量氢氧化钠溶液滴定总酸度。 - 取代 ISO 建议 R 910-1968。 [外文原描述]： Two cases are considered: sulphuric acid contents equal to or lower than 98 % (m/m) and sulphuric acid contents higher than 98 % (m/m). The principle is based on oxidation of a test portion with hydrogen peroxide and titration of the total acidity with a standard volumetric sodium hydroxide solution, in the presence of methyl red as indicator. - Replaces ISO Recommendation R 910-1968.
英文名称Sulphuric acid and oleum for industrial use — Determination of total acidity, and calculation of free sulphur trioxide content of oleum — Titrimetric method