Cope-LLG Catalogue 2018

698 6. Distillation, separation, filtration Filtration/Glass-fibre filters GENERAL CATALOGUE EDITION 20 E & OE. Quartz microfibre filters, grade QM-A Manufactured from quartz microfibre to withstand high temperatures. Can be used up to 500 °C. 1 GE Healthcare Flow rate: Fast Retention: Medium Wet strength: High Thickness: 0.475 mm Diam. PK Cat. No. mm 25 37 47 55 90 203 x 254 100 100 100 100 100 25 9.056 679 9.056 699 9.056 729 9.056 790 6.205 852 9.056 814 1 Qualitative Quartz microfibre filters, QFH, round filters Recommended filters for atmospheric pollution control and for particles determination at high temperatures. - Filters made of pure quartz microfibre (SiO 2 ), free of binding elements or additives - Extremely low content in alkali-earth metals - Determination of suspended particles (SPM and TSP) in ambient air acc. to the directive of the US EPA (Environmental Protection Agency) and the EN 23210 - Retention: Excellent retention of very fine particles through the adsorption mechanisms of quartz fibres - Chemical stability: excellent stability with hardly any loss of filter-material due to chemical reactions under extreme conditions with acid gases (HCl, SO 2 , SO 3 , H 2 SO 4 , NO and NO 3 ) - Resistance to chemical reagents: excellent resistance to solvents, acids (except HF) and alkaline substances - Stability at high temperatures: higher resistance than glass microfiber, up to 1000 °C - Weight: 85 g/m² - Thickness: 0.45 mm Further sizes on request. 2 Hahnemühle Diam. PK Cat. No. mm 47 150 203 x 254 50 50 50 7.970 403 6.255 834 6.242 598 2