Filter Papers

Typical Properties - Qualitative Standard Filter Grades Grade Description Particleretentionin liquid (?m)(approx.) Filtration speed(approx.)herzberg (s) Air flow(s/100 ml/in2) Typicalthickness(?m) Basis weight(g/m2) 520 a Very fast,creped, highwet strength 15-18 17.5 - 300 90 520 b II Very fast, creped,wet strength,thick 15-19 15 - 500 135 0858 Medium fast,grained 7-12 55 4.9 170 75 0860 Medium fast,smooth 7-12 60 4.8 170 75 0903 Medium toslow, smooth 4-7 175 - 140 65 0905 Very fast, creped 12-25 20 - 270 75 1574 Medium fast,very low fiberrelease 7-12 85 - 160 90 1575 Slow, very lowfiber release < 2 700 - 140 92 2294 Fast, wetstrength, thick 8-15 27.5 4.4 1500 556 2411 Fast, creped,wet strength 9-11 35 - 350 85 2589 a Medium fast,wet strength 6-12 60 - 430 200 2589 c Medium to slow,wet strength 4-8 160 - 750 400 2589 d Medium to slow,wet strength, thick 2-6 235 - 1000 500 SharkSkin Medium to slow,wet strength, thin,creped 8-12 77.5 - 170 44 --------------------------------------------------------------------------------Ordering Information - Filter Papers for Technical Use Catalog Number Description Grade 520 a 10331421 Grade 520 a circles, 270 mm, 100/pk 10331487 Grade 520 a sheets, 580 x 580 mm, 250/pk Grade 520 bII 10331687 Grade 520 bII sheets, 580 x 580 mm, 250/pk Grade 0858 10334365 Grade 0858 sheets, 110 x 580 mm, 500/pk 10334383 Grade 0858 sheets, 390 x 390 mm, 500/pk 10334385 Grade 0858 sheets, 450 x 450 mm, 500/pk Grade 0860 10334512 Grade 0860 circles, 150 mm, 100/pk Grade 0903 10334885 Grade 0903 sheets, 450 x 450 mm, 500/pk 10334887 Grade 0903 sheets, 580 x 580 mm, 500/pk Grade 0905 10334985 Grade 0905 sheets, 450 x 450 mm, 500/pk 10334987 Grade 0905 sheets, 580 x 580 mm, 500/pk Grade 1574 10314812 Grade 1574 circles, 150 mm, 100/pk 10314889 Grade 1574 sheets, 400 x 400 mm, with 4 holes each 28 mm, 500/pk Grade 1575 10314983 Grade 1575 sheets, 300 x 309 mm, with 4 holes each 20 mm, 500/pk Grade 2294 10342810 Grade 2294 circles, 110 mm, 100/pk 10342860 Grade 2294 circles, 180 mm with central hole 33 mm, 100/pk 10342862 Grade 2294 circles, 210 mm with central hole 60 mm, 100/pk Grade 2411 10343287 Grade 2411 sheets, 580 x 580 mm, 250/pk Grade 2589 a 10343630 Grade 2589 a circles, 140 mm, 500/pk 10343687 Grade 2589 a sheets, 580 x 580 mm, 100/pk Grade 2589 c 10343876 Grade 2589 c sheets, 25 x 75 mm, 100/pk Grade 2589 d 10343976 Grade 2589 d sheets, 25 x 75 mm, 100/pk Grade Shark Skin 10347509 Shark Skin circles, 90 mm, 100/pk 10347510 Shark Skin circles, 110 mm, 100/pk 10347511 Shark Skin circles, 125 mm, 100/pk 10347513 Shark Skin circles, 150 mm, 100/pk 10347512 Shark Skin circles, 185 mm, 100/pk 10347519 Shark Skin circles, 240 mm, 100/pk 10347521 Shark Skin circles, 270 mm, 100/pk 10347577 Shark Skin circles, 290 mm, 100/pk 10347530 Shark Skin circles, 320 mm, 100/pk 10347522 Shark Skin circles, 340 mm, 100/pk 10347523 Shark Skin circles, 385 mm, 100/pk 10347525 Shark Skin circles, 500 mm, 100/pk 10347576 Shark Skin circles, 812.8 mm, 100/pk 10538877 Shark Skin sheets, 8 x 10 inches, 100/pk 10538873 Shark Skin sheets, 37 x 37 inches, 500/pk 10347588 Shark Skin sheets, 26 x 53 inches, 500/pk 10347585 Shark Skin sheets, 32 x 64 inches, 500/pk 10537138 Shark Skin roll, 21 inches x 750 feet, 1/pk