ISO 6794:1981 PDF
Butane-1,4-diol for industrial use — Determination of degree of unsaturation
Название (английский):
ISO 6794:1981
Butane-1,4-diol for industrial use — Determination of degree of unsaturation
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 октября 1981 г.
- Издание:
- ISO IS 6794 edition 1 version 1
- ICS:
- 71.080.10
Описание (английский):
A test portion is treated with a solution of bromine in absolute methanol saturated with sodium bromide (Kaufman solution). After addition of potassium iodide solution the liberated iodine is titrated with standard volumetric sodium thiosulfate solution. The degree of unsaturation is expressed as iodine value, the number of grams of iodine absorbed by 100 g of a substance under specified conditions of test.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 6794:1981