HOME CATALOG ABOUT US NEWS PROJECTS CONTACTS NEWS A revolution in DNA identification technology! DNAscan ™ Rapid DNA Analysis ™. We are ready to offer you innovative solutions in the field of filtration in laboratory conditions from Whatman! NEW! Sievers TOC Analyzer (TOC Analyzers) Attention! We offer an innovative long lasting antimicrobial coating! +7 (495) 640-39-41LLC "Greenvan"info@green-van.ru Copyright © grenvan.ru 2015 All rights reserved

HOME CATALOG ABOUT US NEWS PROJECTS CONTACTS home Catalog Double ring ™ ASHLESS FILTER PAPER Ashless filter paper Ashless filter papers feature a smooth surface, extremely low ash content, high filtration capacity and efficiency, and excellent particle retention. Ashless filter paper is designed for gravimetric analysis and sample preparation for instrumental analysis. Double Ring is a versatile filter paper offering high, medium or low flow rates. Ashless filter paper can be used for a variety of applications, such as analyzing food or soil composition, collecting particles for air monitoring, analyzing inorganic chemicals in building materials, analyzing mineral composition, and various tasks in the steel industry. Specifications Class Separation efficiency Filtration speed (s) Ash content (%) Wet bursting resistance (mm, H2O) Weight (g / m2) pH Whiteness (%) FAST 201 Fe (OH) 3 ≤35 ≤0.009 130 80.0 ± 4.0 5.0-8.0 ≥85.0 MEDIUM 202 PbSO4 from> 35 to ≤70 ≤0.009 150 80.0 ± 4.0 5.0-8.0 ≥85.0 SLOW 203 BaSO4 (warm) from> 70 to ≤140 ≤0.009 200 80.0 ± 4.0 5.0-8.0 ≥85.0 Ordering information Class Quantities ∅ 7 cm ∅ 9 cm ∅ 11 cm ∅ 12.5cm ∅ 15 cm ∅ 18 cm FAST 201 100 / pack 99-291-070 99-291-090 99-291-110 99-291-125 99-291-150 99-291-180 MEDIUM 202 100 / pack 99-292-070 99-292-090 99-292-110 99-292-125 99-292-150 99-292-180 SLOW 203 100 / pack 99-293-070 99-293-090 99-293-110 99-293-125 99-293-150 99-293-180 +7 (495) 640-39-41LLC "Greenvan"info@green-van.ru Copyright © grenvan.ru 2015 All rights reserved

HOME CATALOG ABOUT US NEWS PROJECTS CONTACTS home Catalog DOUBLE RING ™ Wet resistant quality filter paper Diffusion and dispersion filter papers Quality filter paper Chromatography paper Ashless filter paper Ashless filter paper for mining / cement applications Double Ring Filter Selection Guide Double Ring Filter Paper Double Ring cellulose filter papers are made from high quality cotton linters and are designed for general filtration and particle retention. Filtration of samples with volume of both high (mm) and low (μl) level is possible. Double Ring cellulose filter papers offer a wide variety of combinations for retention characteristics and flow rates to suit a variety of laboratory applications. +7 (495) 640-39-41LLC "Greenvan"info@green-van.ru Copyright © grenvan.ru 2015 All rights reserved