ISO 3401:1991
Cigarettes — Determination of alkaloid retention by the filters — Spectrometric method
Cigarettes — Determination of alkaloid retention by the filters — Spectrometric method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 28 ноября 1991 г.
- Издание:
- ISO IS 3401 edition 2 version 1
- ICS:
- 65.160
Specifies a direct and a indirect method. Describes the principle, the reagents, the apparatus, the sampling, the test procedures, the expression of results, and the contents of the test report. This second edition cancels and replaces the first edition (1977).
Abstract
Overview
ISO 3401:1991 - - specifies two spectrometric procedures (a and an ) for measuring the alkaloids retained by cigarette filters, expressed as nicotine. The standard describes principle, reagents, apparatus, sampling, test procedures, calculation of results and reporting. The direct method is preferred except where filter materials (for example some charcoal filters) prevent complete recovery; the indirect method has limitations (not suitable for cigarettes with perforated or porous filter tipping wraps).
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