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sklademVydáno: 1977
ISO 910:1977
ISO 910:1977-Sulphuric acid and oleum for industrial use — Determination of total acidity, and calculation of free sulphur trioxide content of oleum — Titrimetric method
Formát
Dostupnost
Cena a měna
Anglicky PDF
K okamžitému stažení
1200 Kč
Francouzsky PDF
K okamžitému stažení
1200 Kč
Anglicky Tisk
Skladem
1200 Kč
Francouzsky Tisk
Skladem
1200 Kč
| Označení normy: | ISO 910:1977 |
| Počet stran: | 3 |
| Vydání: | 1 |
| Vydáno: | 1977 |
Popis
ISO 910:1977
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.