BS ISO 16000-3:2011

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Limitations and interferences
5 Safety measures
6 Apparatus
7 Reagents and materials
8 Preparation of reagents and cartridges
9 Procedure
10 Calculations
11 Performance criteria and quality assurance
12 Precision and uncertainty
13 Test report
Annex A (informative) - Precision and uncertainty
Annex B (informative) - Melting points of DNPH-carbonyl
        derivatives
Bibliography

Describes a determination of formaldehyde (HCHO) and other carbonyl compounds (aldehydes and ketones) in air.

This part of ISO16000 specifies a determination of formaldehyde (HCHO) and other carbonyl compounds (aldehydes and ketones)1) in air. The method is specific to formaldehyde but, with modification, at least 12 other aromatic as well as saturated and unsaturated aliphatic carbonyl compounds can be detected and quantified. It is suitable for determination of formaldehyde and other carbonyl compounds in the approximate concentration range 1µg/m3 to 1mg/m3. The sampling method gives a time-weighted average (TWA) sample. It can be used for long-term (1h to 24h) or short-term (5min to 60min) sampling of air for formaldehyde. This part of ISO16000 specifies a sampling and analysis procedure for formaldehyde and other carbonyl compounds that involves collection from air on to adsorbent cartridges coated with 2,4-dinitrophenylhydrazine (DNPH) and subsequent analysis of the hydrazones formed by high performance liquid chromatography (HPLC) with detection by ultraviolet absorption[12],[16]. The method is not suitable for longer chained or unsaturated carbonyl compounds. This part of ISO16000 applies to the determination of: acetaldehydeacetone benzaldehyde butyraldehyde capronaldehyde 2,5-dimethylbenzaldehydeformaldehyde isovaleraldehyde propionaldehyde m-tolualdehydeo-tolualdehyde p-tolualdehyde valeraldehyde