984 Filtration 100% binder-free glass fibre filters. hWith high loading capacity and retention of very fine to sub-micron particles hCan be used down to 500 °C hApplications: air filtration and gravimetric analysis of volatile materials in explosive atmospheres hGMF 150 filters: multi-layer glass microfibre filters with a loose top layer (10 µm) upstream of a thin layer of 1 or 2 µm. Ideal pre-filter for high load capacities in connection with fast filter speeds hQM-A quartz fibre filters: made of high purity quartz microfibre (SiO2); high temperature resistance €/ box Cat. No. Units/ box Dim. (mm) GF/A €/ box Cat. No. Units/ box GF/B €/ box Cat. No. Units/ box GF/C™ €/ box Cat. No. Units/ box GF/D €/ box Cat. No. Units/ box GF/F ø 21 036281 100 N/A - 036461 100 N/A - 036311 100 N/A - 036465 100 N/A - 036470 100 N/A - ø 24 036282 100 N/A - 036298 100 N/A - 036312 100 N/A - 036466 100 N/A - 036333 100 N/A - ø 25 036283 100 N/A - 036299 100 N/A - 036313 100 N/A - 036325 100 N/A - 036334 100 N/A - ø 37 036284 100 N/A - 036300 100 N/A - 036463 100 N/A - - - - 036471 100 N/A - ø 42.5 036285 100 N/A - 036301 100 N/A - 036314 100 N/A - 036467 100 N/A - 036335 100 N/A - ø 47 036286 100 N/A - 036302 100 N/A - 036315 100 N/A - 036326 100 N/A - 036336 100 N/A - ø 55 036288 100 N/A - 036303 100 N/A - 036317 100 N/A - 036468 100 N/A - 036337 100 N/A - ø 70 036291 100 N/A - 036304 100 N/A - 036318 100 N/A - 036327 100 N/A - 036338 100 N/A - ø 90 036292 100 N/A - 036305 25 N/A - 036319 100 N/A - 036328 25 N/A - 036339 25 N/A - ø 110 036293 100 N/A - 036306 25 N/A - 036320 100 N/A - 036329 25 N/A - 036416 25 N/A - ø 125 036294 100 N/A - 036307 25 N/A - 036321 100 N/A - 036330 25 N/A - 036417 25 N/A - ø 150 036295 100 N/A - 036308 25 N/A - 036322 100 N/A - 036331 25 N/A - 036418 25 N/A - ø 257 - - - - - - - - - 036332 25 N/A - 036419 25 N/A - 460 x 570* - - - 036462 5 N/A - - - - - - - - - - 460 x 570** 036297 25 N/A - 036310 25 N/A - 036324 25 N/A - 036469 25 N/A - - - - * 5 per box ** 25 per box Standard grades Whatman™Filter Papers Grade Retention range Air flow Weight Thickness (µm) (s/100 mL/in2) (g/m2) (µm) Glass fibre filters GF/A 1.6 4.3 53 260 GF/B 1 12 143 675 GF/C™ 1.2 6.7 53 260 GF/D 2.7 2.2 121 675 GF/F 0.7 19 75 420 934-AH 1.5 3.7 64 435 Glass fibre filters GMF 150 - 1 µm 1.2 3.1 139 730 GMF 150 - 2 µm 2.4 1.5 149 750 Quartz fibre filters QM-A™ 2.2 6.4 85 450 hStandard use filter hSuspended solids hAlgae filtration, bacterial cultures hAtmospheric control hThicker than GF/A: better moisture resistance, better load capacity hRecommended for standard suspended solids dosing processes hCell collection, liquid scintillography hBinders analysis hMembrane pre-filter - high loading capacity hExcellent retention, filtration of fine particles hDNA purification hDissolution tests hSmooth surface and temperature resistance up to 550 °C hEnvironmental analysis hAir and water pollution hCell harvesting hLiquid scintillation counting hMulti-layer filter with progressive retention from 10 µm to 1.2 µm hMulti-layer filter with progressive retention from 10 µm to 2.4 µm hAir, acid gases, stacks, ducts and aerosols sampling Whatman™Glass fibre filter papers Enter the reference on dulis.nl to find the chemical compatibility guide for Whatman™membrane filters WEB
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