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| Quartz microfibre filters, QFH Recommended filters for atmospheric pollution control and for particles determination at high temperatures. -Filters made of pure quartz microfibre (SiO2), 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, SO2, SO3, H2SO4, NO and NO3) -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: 0.45mm Product Specification: Diam.: 47mm | |
| Catalogue Number | 7.970 403 |
| Manufacturer | Hahnemuhle Fineart |
| Manufacturer P/n | QFH047 |
| Type | QFH |
| Ø mm | 47.0 |
| Weight g/m² | 85 |
| PK | 50 |
| Binder | Without |
| Thickness mm | 0.450 |
| Max. temp. resistance °C | 1000 |
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