INNOVATIVE TECHNOLOGY FOR TRACE ORGANIC ANALYSIS REGISTER|LOGIN EMAIL: enquiries@markes.com TEL: +44 (0)1443 230 935 Home Products TD instrumentation UNITY TD-100 CIA Advantage TT24-7 ULTRA Air Server HS5-TD Micro-Chamber/Thermal Extractor TC-20 & TC-20 TAG MTS-32 Sampling accessories Sorbent tubes Sorbent tube accessories Tube labelling & tracking Sorbents Sampling accessories Calibration & standards Starter kits Instrument spares Laboratory accessories Mass Spectrometry BenchTOF-Evolve BenchTOF-HD BenchTOF-Select Select-eV Software TargetView TOF-DS Product packages EPA Method 325 Applications Defence & forensic Stockpiled & non-stockpiled agents Chemical warfare agent research Homeland security Forensic Environmental Ambient air Industrial air Soil gas Water Food, flavour, fragrance Food analysis Liquids Fragrance Material emissions Vehicle interior air quality Construction products Consumer goods Cleanroom contaminants Formaldehyde monitoring Resources TD Application notes Applications – Defence & forensic Applications – Environmental Applications – Food & fragrance Applications – General Applications – Human health Applications – Material emissions General topics & overviews Technical support Mass Spec application notes Select-eV Applications – Environmental Applications – Food & fragrance Applications – Forensic & tox Applications – Homeland security Applications – Materials Applications – Metabolomics Applications – Petrochemical General topics and overviews Technical notes Application notes in Chinese 中文应用案例 Brochures & Tech Specs Accessories catalogue Brochures Technical specifications Instrument registration Register your instrument Case studies Case study – Birmingham University Case study – Cardiff University Case study – Plymouth University Case study – Uni of Copenhagen Scientific publications Conference posters Conference presentations Papers Frequently asked questions What is thermal desorption? Videos Videos Company info About Markes Technical innovation Find us Global distribution Testimonials Events News Blog Contact Products Discussed On This Page Micro-Chamber/Thermal Extractor Fast sampling of emissions from products and materials > Home > markets > Material emissions > Formaldehyde monitoring Material emissions – Formaldehyde monitoring Building materials and household products Formaldehyde (HCHO) is used worldwide in the manufacture of building materials and household products, and is also a by-product of combustion. As a result, it is one of the most abundant toxic pollutants in indoor air. With this mind, guidelines for indoor air quality (IAQ) and vehicle interior air quality (VIAQ) now state that the concentration of formaldehyde should not exceed certain limits. To meet these requirements, manufacturers of furnishings, building materials and car trim components are now expected to produce goods with low formaldehyde emissions. Formaldehyde emission regulations and protocols cover a variety of areas, with the following being of particular importance: Composite wood products: Airborne toxic control measure for formaldehyde, approved by the EPA Air Resources Board (California, USA). Fire-resistant floor coverings: AgBB scheme (Germany). Solid building materials: ANSES (previously AFSSET) construction product regulations (France). Car trim: Regulations from JAMA (Japan) and TÜV (Germany). Two more general methods for the detection of volatile and semi-volatile organic compounds (VOCs and SVOCs) also cover formaldehyde: ISO 12219-3: Interior air of road vehicles – Part 3: Screening method for the determination of the emissions of volatile organic compounds from vehicle interior parts and materials – Micro-scale chamber method. ASTM D7706: Standard practice for rapid screening of VOC emissions from products using micro-scale chambers. What Markes can offer Although formaldehyde is not compatible with thermal desorption anlysis, Markes’ sampling technologies can still be used. In particular, the Micro-Chamber/Thermal Extractor can successfully be applied to the collection of formaldehyde vapours released from products or materials. The sample is placed in one of the compact chambers, which is held at a specified temperature as a flow of gas is applied. However, instead of being swept onto a TD sample tube, the gas flow is either: Collected onto a cartridge containing 2,4-dinitrophenylhydrazine (DNPH), which reacts with the formaldehyde to generate a stable derivative. The cartridge is then analysed by high-performance liquid chromatography (HPLC). Passed directly into an on-line formaldehyde monitor, such as the AL4021 from Aero-Laser GmbH. In this case, the formaldehyde reacts with acetylacetone, producing a fluorescent derivative that can be detected spectroscopically. Further information For a discussion of the role of formaldehyde in indoor air, see: An introduction to indoor air quality (IAQ) – Formaldehyde, US EPA. The Fraunhofer Institute for Wood Research carries out research into material analysis and indoor chemistry. UK Markes International Ltd Gwaun Elai Medi-Science Campus Llantrisant RCT CF72 8XL, UK Tel: +44 (0)1443 230935 USA (East) Markes International, Inc 11126-D Kenwood Road Cincinnati Ohio 45242 USA Tel: 866-483-5684 (toll-free) USA (West) Markes International, Inc 2355 Gold Meadow Way Gold River California 95670 USA Tel: 866-483-5684 (toll-free) Germany Markes International GmbH Schleussnerstrasse 42 D-63263 Neu-Isenburg Frankfurt Germany Tel: +49 (0)6102 8825569 Privacy Policy Terms and Conditions Employment opportunities Trademarks Website Design by ZARR Register Today Contact Us Product Brochure Application Notes Top