Ссылочный номер
ISO 5279:1980
© ISO 2024
ISO 5279:1980
Toluene — Determination of hydrocarbon impurities — Gas chromatographic method
Версия 1
1980-10
В время отменен
Отозвано (Версия 1, 1980)

Тезис

Applicable to the quantitative determination of contents of benzene, C8 aromatics and aliphatics up to n-nonane in the range between 0.01 % (m/m) and 1.00 % (m/m). Alternatives that will give equivalent results may also be used. Addition of a known amount of intgernal standard to a test portion and introduction of an aliquot portion of this mixture into a separating column. Sweeping of the vaporized mixture through the column by a flow of carrier gas. Detection of each component as it emerges by a flame ionization detector and recording as a peak on a diagram. Identification by their relative retention times and quantitative determination from the ratio of their peak areas.

Общая информация

  • Текущий статус
     : Отозвано
    Дата публикации
     : 1980-10
    Этап
    : Отмена международного стандарта [95.99]
  • Версия
     : 1
  • Технический комитет :
    ISO/TC 47
    ICS :
    71.080.15 
  • RSS обновления

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  2. Интернет-магазин
  3. Каталог стандартов
  4. МКС
  5. 71
  6. 71.080
  7. 71.080.15
  8. ISO 5279:1980