ISO 9855:1993 PDF
Ambient air — Determination of the particulate lead content of aerosols collected on filters — Atomic absorption spectrometric method
Ambient air — Determination of the particulate lead content of aerosols collected on filters — Atomic absorption spectrometric method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 7
- Дата публикации:
- 14 октября 1993 г.
- Издание:
- ISO IS 9855 edition 1 version 1
- ICS:
- 13.040.20
The principle of the method specified is based on digesting with acid the particulate material collected on a filter, solubilizing any lead present und analysing the sample solution by atomic absorption spectrometry (AAS). The method is applicable to ambient air samples with particulate lead contents, such that the amount of deposited particulate lead collected on the filter is greater than 1 µg if flame AAS is used. Final determination by graphite furnace AAS allows measurement of quantities of less than 1 µg, but is only applicable after experimental validation of detection limits.
Abstract
Overview - ISO 9855:1993 (Ambient air - Particulate lead by AAS)
ISO 9855:1993 specifies a standardized laboratory method for determining the particulate lead content of aerosols collected on filters using acid digestion followed by atomic absorption spectrometry (AAS). The procedure covers sample preparation, three validated digestion routes, calibration, instrument setup and reporting. It is intended for ambient air monitoring where particulate lead collected on filters is sufficient for accurate AAS measurement.
Key topics and technical requirements
- Principle: Digest particulate material collected on filters with acid to solubilize lead, then quantify by AAS.
- Detection limits: Method is applicable for samples with > 1 µg deposited lead when using flame AAS. Graphite furnace AAS can measure
Технические детали
- Технический комитет
- ISO/TC 146/SC 3 - Ambient atmospheres
- SKU
- ISO 9855:1993
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