VOC emissions of clean-spacesuited materials � second selection of the CSM meeting 2011

While the past project phases of the industrial group CSM � cleanroom suitable of material became measurements of materials standardised, in order by determination of specific material properties (particle emission with tribologischer load, degassing of volatile organic compounds (VOC), chemical stability, biological stability and Mikrobizidit�t) the suitability of the tested materials for the different pure classes of area and � ranges comparatively to determine (1). The measurements and the classification resulting from it� after CSM standard in the guideline VDI 2083 sheet 17 (draft) were embodied, which up-to-date as creating jerk in the circulation is and still this year is adopted finally (2). On international level the draft directive was already successfully presented to item as basis for a new � ISO work proposal �. It is to be expected that the approaches specified therein are taken over to a large extent thereby. To 17. February took place during the Lounges in Karlsruhe the CSM Jahrestreffen 2011 with the emphasis � VOC emissions of clean-spacesuited materials �. The partial aspect of the VDI was presented 2083 sheet 17 (draft) � to degassing in detail �. Why a new VOC guideline? Established measuring standards for VOC emissions like the very aufw�ndigen chamber measurements according to ISO 16000-9 end with the determination of the surface-specific emission rate (3). Space-oriented sets of rules like the ASTM E 595 refer among other things to the TML value (totally measured loss), which under defined vacuum is determined (4). The VDA guideline 278 of the automobile industry does not refer to the active intact surface of the material, which is necessary however for the determination of a surface-specific emission rate (5). The new VDI recommendation does not only describe the determination of the surface-specific emission rate (SERm) as world-wide the first standardisation writing connected with a clear material classification (ISO AMCm class x) for VOCs, but described also the estimation of one TVOC concentration of a pure area after bringing in a material, classified which can be expected, first.� The TVOC concentrations determined thereby can according to ISO 14644-8 directly as� a ISO AMC class to be indicated (6) (7) (8).MARKES international and Agilent Technologies the micro chambers applicable for it presented like also the equipment according to device of a thermal desorption office/ms unit. Comparable thermal desorbers come also from the house PerkinElmer and Gerstel. The lecture of the company Siltronic AG showed impressive, which problems of VOCs can cause haze as example � of the time dependend � (TDH) in the semiconductor industry. Due to the fact that molecular contamination of the pure space atmosphere (VOC among other things) has a direct influence on the quality of a wafer, is to be kept as small as possible these, which settles in the choice of materials for pure manufacturing. Sika Technology AG pointed solutions out from its house as answer to the demands of the semiconductor industry concerning newer strongly VOC reduced ground coatings. These were taken up in the context of the CSM qualification by the Fraunhofer IPA to the data base www.ipa-csm.com. A CSM Workshop in similar form is autumn of this yearly in Tokyo/Japan at the Fraunhofer Representative Office (www.fraunhofer.jp) planned. The next CSM Jahrestreffen 2012 takes place the Lounges in Karlsruhe. The emphasis becomes apart from particle and VOC emissions of materials also the range materials for Life Science applications sein.1 Literaturverzeichnis1. Cellar, Markus. Clean-room technology in the foodstuffs industry � choice of materials for hygenic manufacturing environments by the example of walls, grounds and joints. The food letter. Lampertheim: Food news service GmbH, 2010. Bd. 21, 11/12, P. 12-17.2. VDI 2083 sheet 17 - draft. Clean-room technology - pure space fitness of materials. Berlin: Beuth publishing house, 2011.3. DIN EN ISO 16000-9. Interior air pollutions - part of 9: Determination of the emission of volatile organic compounds from building products and furnishings - emission test chamber procedures. Berlin: Beuth publishing house, 2008.4. ASTM E 595. Standard test Method for totally measure of Loss and Collected volatile Condensable of material from Outgassing in A Vacuum Environment. West Conshohocken: ASTM international, 2007.5. VDA 278 - Recommendation. Thermal desorption analysis of organic emissions for the characterisation of non-metallic KFZ materials. Berlin: Federation of the automobile industry registered association, 2002.6. Cellar, Markus. Emissions of clean-spacesuited materials. Clean-room technology. Darmstadt: GIT publishing house GmbH & CO. Kg, 2010. Bd. 12, 3, P. 14-17.7. Cellar, Markus. VOC emission test method: Calculating VOC emission. Cleanroom Technology. 2011, 19, P. 19-23.8. DIN EN ISO 14644-8. Pure area and associated pure space ranges - part of 8: Classification of airborne molecular contamination. Berlin: Beuth publishing house, 2006.9. DIN EN ISO 846. Effect of microorganisms on plastics of consumer articles. Berlin: Beuth publishing house, 1997.10. ISO 22196. Plastics - measurement of antibacterial activity on plastic surfaces. Berlin: Beuth publishing house, 2007.11. DIN EN ISO 2812-1. Coating materials - determination of the stability against liquids - immersing in liquids except water. Berlin: Beuth publishing house, 2007. Illustration 1: Reactive sample of a material, prepares turbo-matrix ATD 650 (PerkinElmer) into a glass base beside a micro chamber of a �CTE unit (MARKES international) on the thermal desorber.

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