Cope-LLG Catalogue 2018

695 6. Distillation, separation, filtration Filtration/Glass-fibre filters GENERAL CATALOGUE EDITION 20 E & OE. Glass microfibre filters Glass microfibre filters have a fast filtration and a high loading capacity and particle retention rate. Manufactured without chemical binder from high grade borosilicate glass. (Exception: GF6, GF9). They are suitable for gravity or low suction filtration. Filtration speeds generally very much higher than conventional cellulose papers. Efficient retention of micron size particles. Must be used flat. Ideal for use in flat perforated plate Buchner type funnels (not sintered glass models). Can be used up to 500 °C Wide range of applications including: - retention of fine analytical precipitates - retention of biochemical gelatinous precipitates - water/air pollution analyses - as prefilters for membranes - scintillation counting - radioimmunoassay. LLG-Glass microfibre filters, filter circles 1 Diam. Filtration time Weight Thickness PK Cat. No. mm secs. g / m² mm 25 37 47 55 90 110 125 150 25 47 55 70 90 110 47 55 70 60* 60* 60* 60* 60* 60* 60* 60* 100* 100* 100* 100* 100* 100* 310* 310* 310* 52 52 52 52 52 52 52 52 52 52 52 52 52 52 75 75 75 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.45 0.45 0.45 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 9.045 860 7.970 790 9.045 861 6.242 633 6.252 072 7.970 339 7.970 033 9.045 862 9.045 865 6.243 711 6.251 383 9.045 866 9.045 867 9.045 868 7.970 106 7.970 742 6.253 553 *filtration velocity according to Herzberg 1 Glass microfibre filters, grade GF 9, circles Glass fibre filters are made of 100% borosilicate glass fibres with an inorganic binder. Temperature resistant up to 500 °C. Glass fibre filters are chemically resistant except against hydrofluoric acids and highly concentrated alkalis. Application: - Gas-/air-monitoring - Water and waste water determination 2 GE Healthcare Retention rate: 99.97 % Filtration time according to Gurley: 20 s Diam. Filtration time Weight Thickness PK Cat. No. mm secs. g / m² mm 50 90 110 120* 120* 120* 70 70 70 0.35 0.35 0.35 200 100 100 9.068 699 9.068 702 9.068 703 * to Herzberg 2 Glass microfibre filters, grade GF 6, circles 3 GE Healthcare Retention rate: 99.97 % Filtration time according to Gurley: 40 s Diam. Filtration time Weight Thickness PK Cat. No. mm secs. g / m² mm 55 70 90 110 125 150 185 240 200* 200* 200* 200* 200* 200* 200* 200* 80 80 80 80 80 80 80 80 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 100 100 100 100 100 100 100 100 9.068 500 9.068 501 9.068 502 9.068 503 9.068 504 9.068 505 9.068 506 9.068 507 * to Herzberg 3