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Ambient air - Determination of particle-phase polycyclic aromatic hydrocarbons by high performance liquid chromatography


Document Number: ISO 16362:2005
File Size: 341 kB
Language: English
Provider: ANSI
Shipping: Available for download - Link will be provided in My ComplianceOnline section

Price: $116.00
Product Details

ISO 16362:2005 specifies sampling, cleanup and analysis procedures for the quantitative determination of low volatility (particle-bound) polycyclic aromatic hydrocarbons (PAHs) in ambient air. For sampling, a low-volume or a medium/high-volume sampling device may be used. Sampling times between 1 h and 24 h are possible. The sampling volume flow rates can range from 1 m/h to 4 m/h ('low volume sampler') or from 10 m/h to about 90 m/h ('medium/high-volume sampler'). In any case, the linear face velocity at the collection filter should range between about 0,5 m/s and 0,9 m/s. The method has been validated for sampling periods up to 24 h. The detection limits for single PAHs and the standard deviations resulting from duplicate measurements are listed. ISo 16362:2005 describes a sampling and analysis procedure for PAH that involves collection from air onto a filter followed by analysis using high performance liquid chromatography usually with fluorescence detector (FLD). The use of a diode array detector (DAD) is possible. The combination of both detector types is also possible. Total suspended particulate matter is sampled. Generally, compounds having a boiling point above 430 øC (vapour pressure less than 10-9 kPa at 25 øC, e.g. chrysene, benz[a]anthracene) can be collected efficiently on the filter at low ambient temperatures (e.g. below 10 øC). In contrast, at higher temperatures (above 30 øC, see also ISO 12884[1]), only PAHs having boiling points above 475 øC (vapour pressure less than 10-10 kPa at 25 øC) are determined quantitatively.

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