ISO 2516:1973 PDF
Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of total alkalinity — Volumetric method
Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of total alkalinity — Volumetric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 1
- Дата публикации:
- 1 апреля 1973 г.
- Издание:
- ISO IS 2516 edition 1 version 1
- ICS:
- 67.220.20
The principle of the analysis consists in acidification of a test solution by addition of an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red- methylene blue mixed indicator.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 2516:1973
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