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[Filter&pH Papers] Quantitative Filter Papers - Ashless Grades (Ash 0.007%)
관리자 2021-10-26 17:21:24
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They are available in three formats designed to meet your specific needs.
  • Ashless: 0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades – very pure filters suitable for a wide range of critical analytical filtration procedures


 

Typical Properties - Ashless Quantitative Papers

Grade Description Particle
retention
in liquid (µm)		 Filtration speed
herzberg (s)		 Ash content* (%) Typical
thickness
(µm)		 Basis weight
(g/m2)
40 Medium flow 8† 340 0.007 210 95
41 Fast 20† 54 0.007 220 85
42 Slow 2.5† 1870 0.007 200 100
43 Medium to fast 16† 155 0.007 220 95
44 Slow to medium 3† 995 0.007 180 80
589/1 Fast 12-25‡ 25 0.01 190 80
589/2 Medium fast 4-12‡ 70 0.01 180 85
589/3 Slow < 2‡ 375 0.01 160 84

* Ash is determined by ignition of the cellulose filter at 900°C in air
† Particle retention rating at 98% efficiency
‡ Approximate values
 

Ordering Information - Quantitative Filter Papers - Ashless Grades (Ash 0.007%)

Catalog Number Description
Grade 40
1440-012 Grade 40 circles, 12.7 mm, 400/pk
1440-329 Grade 40 circles, 30 mm, 100/pk
1440-032 Grade 40 circles, 32 mm, 100/pk
1440-042 Grade 40 circles, 42.5 mm, 100/pk
1440-047 Grade 40 circles, 47 mm, 100/pk
1440-055 Grade 40 circles, 55 mm, 100/pk
1440-070 Grade 40 circles, 70 mm, 100/pk
1440-090 Grade 40 circles, 90 mm, 100/pk
1440-110 Grade 40 circles, 110 mm, 100/pk
1440-125 Grade 40 circles, 125 mm, 100/pk
1440-150 Grade 40 circles, 150 mm, 100/pk
1440-185 Grade 40 circles, 185 mm, 100/pk
1440-240 Grade 40 circles, 240 mm, 100/pk
1440-320 Grade 40 circles, 320 mm, 100/pk
1440-6168 Grade 40 circles, 450 mm, 100/pk
1440-917 Grade 40 sheets, 460 x 570 mm, 100/pk
Grade 41
1441-325 Grade 41 circles, 25 mm, 100/pk
1441-025 Grade 41 circles, 25 mm, 400/pk
1441-6309 Grade 41 circles, 25 mm, 10 000/pk
1441-040 Grade 41 circles, 40.5 mm, 100/pk
1441-042 Grade 41 circles, 42.5 mm, 100/pk
1441-047 Grade 41 circles, 47 mm, 100/pk
1441-050 Grade 41 circles, 50 mm, 100/pk
1441-055 Grade 41 circles, 55 mm, 100/pk
1441-060 Grade 41 circles, 60 mm, 100/pk
1441-070 Grade 41 circles, 70 mm, 100/pk
1441-090 Grade 41 circles, 90 mm, 100/pk
1441-105 Grade 41 circles, 105 mm, 100/pk
1441-110 Grade 41 circles, 110 mm, 100/pk
1441-125 Grade 41 circles, 125 mm, 100/pk
1441-150 Grade 41 circles, 150 mm, 100/pk
1441-185 Grade 41 circles, 185 mm, 100/pk
1441-240 Grade 41 circles, 240 mm, 100/pk
1441-320 Grade 41 circles, 320 mm, 100/pk
1441-866 Grade 41 sheets, 203 x 254 mm, 100/pk
1441-917 Grade 41 sheets, 460 x 570 mm, 100/pk
1920-1441 Disposable filter funnel 250 ml, 47 mm, 5/pk
Grade 42
1442-042 Grade 42 circles, 42.5 mm, 100/pk
1442-047 Grade 42 circles, 47 mm, 100/pk
1442-055 Grade 42 circles, 55 mm, 100/pk
1442-070 Grade 42 circles, 70 mm, 100/pk
1442-090 Grade 42 circles, 90 mm, 100/pk
1442-110 Grade 42 circles, 110 mm, 100/pk
1442-125 Grade 42 circles, 125 mm, 100/pk
1442-150 Grade 42 circles, 150 mm, 100/pk
1442-185 Grade 42 circles, 185 mm, 100/pk
1442-240 Grade 42 circles, 240 mm, 100/pk
1442-320 Grade 42 circles, 320 mm, 100/pk
1442-6551 Grade 42 sheets, 25.4 x 90 mm, 100/pk
1442-917 Grade 42 sheets, 460 x 570 mm, 100/pk
1442-930 Grade 42 sheets, 580 x 580 mm, 500/pk
Grade 43
1443-090 Grade 43 circles, 90 mm, 100/pk
1443-110 Grade 43 circles, 110 mm, 100/pk
1443-125 Grade 43 circles, 125 mm, 100/pk
1443-150 Grade 43 circles, 150 mm, 100/pk
1443-185 Grade 43 circles, 185 mm, 100/pk
Grade 44
1444-070 Grade 44 circles, 70 mm, 100/pk
1444-090 Grade 44 circles, 90 mm, 100/pk
1444-110 Grade 44 circles, 110 mm, 100/pk
1444-125 Grade 44 circles, 125 mm, 100/pk
1444-150 Grade 44 circles, 150 mm, 100/pk
1444-185 Grade 44 circles, 185 mm, 100/pk
1444-240 Grade 44 circles, 240 mm, 100/pk
1444-917 Grade 44 sheets, 460 x 570 mm, 100/pk
Grade 589/1
10300009 Grade 589/1 circles, 90 mm, 100/pk
10300010 Grade 589/1 circles, 110 mm, 100/pk
10300011 Grade 589/1 circles, 125 mm, 100/pk
10300012 Grade 589/1 circles, 150 mm, 100/pk
10300014 Grade 589/1 circles, 185 mm, 100/pk
Grade 589/1 ½
10300045 Grade 589/1 1/2 folded filter, 150 mm, 100/pk
Grade 589/2
10300102 Grade 589/2 circles, 12.7 mm, 1000/pk
10300103 Grade 589/2 circles, 40.5 mm, 100/pk
10300106 Grade 589/2 circles, 50 mm, 100/pk
10300107 Grade 589/2 circles, 55 mm, 100/pk
10300108 Grade 589/2 circles, 70 mm, 100/pk
10300109 Grade 589/2 circles, 90 mm, 100/pk
10300110 Grade 589/2 circles, 110 mm, 100/pk
10300111 Grade 589/2 circles, 125 mm, 100/pk
10300112 Grade 589/2 circles, 150 mm, 100/pk
10300114 Grade 589/2 circles, 185 mm, 100/pk
10300120 Grade 589/2 circles, 240 mm, 100/pk
Grade 589/2 ½
10300143 Grade 589/2 1/2 folded filters, 110 mm, 100/pk
10300145 Grade 589/2 1/2 folded filters, 150 mm, 100/pk
Grade 589/3
10300263 Grade 589/3 circles, 12.7 mm, 1000/pk
10300210 Grade 589/3 circles, 110 mm, 100/pk
10300211 Grade 589/3 circles, 125 mm, 100/pk
10300212 Grade 589/3 circles, 150 mm, 100/pk
10300214 Grade 589/3 circles, 185 mm, 100/pk
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