VDI 2468 Blatt 8:2006-03

Ambient air measurement - Measurement of peroxyacetyl nitrate (PAN) - Preparation of PAN calibration gas

German title: Messen gasförmiger Immissionen - Messen von Peroxiacetylnitrat (PAN) - Herstellen von PAN Prüfgas
Publication date: 2006-03
Original language: German, English
Pages: 11

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Publication date: 2006-03
Original language: German, English
Pages: 11

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Short description

This guideline specifies a dynamic method for the preparation of PAN calibration gases with concentrations in the range of a few ppb (1 ppb = 10^-9), i.e., the relevant range for ambient air measurements. The method is based on the permeation of acetone into a carrier gas flow, followed by photolytic cleavage of the acetone molecules to yield peroxyacetyl radicals and the reaction of these radicals with nitrogen monoxide (NO) to form PAN.

Content

ICS

13.040.20

Replacement amendments

This document replaces VDI 2468 Blatt 8:1985-06 .

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