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Cytiva Whatman™ Qualitative Filter Paper: Grade 1 Circles

Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Circles are widely used standard grade filter papers for routine applications with medium retention and flow rates.

£4.61 - £111.90

Specifications

Airflow Rate 13sec./100mL/sq. in.
Basis Weight 87 g/m2
Format Disc
Material Cellulose
Particle Retention >11 μm
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Products 24
Product Code Brand Diameter (Metric) Quantity Price Quantity & Availability  
Product Code Brand Diameter (Metric) Quantity Price Quantity & Availability  
11350394
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Cytiva
1001-0155
15 mm 500/Pk.
£30.94
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11302805
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Cytiva
1001-020
20 mm 400/Pk.
£26.33
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11312805
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Cytiva
1001-025
25 mm 400/Pk.
£26.33
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10193971
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Cytiva
1001-030
30 mm 400/Pk.
£26.33
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11332805
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Cytiva
1001-032
32 mm 100/Pk.
£6.60
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10433891
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Cytiva
1001-042
42.5 mm 100/Pk.
£6.60
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11352805
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Cytiva
1001-047
47 mm 100/Pk.
£6.60
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10292221
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Cytiva
1001-055
55 mm 100/Pk.
£6.60
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11372805
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Cytiva
1001-070
70 mm 100/Pk.
£7.19
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10738611
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Cytiva
1001-085
85 mm 100/Pk.
£8.40
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11392805
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Cytiva
1001-090
90 mm 100/Pk.
£8.52
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11302815
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Cytiva
1001-110
110 mm 100/Pk.
£10.58
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10424081
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Cytiva
1001-125
125 mm 100/Pk.
£10.85
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Cytiva
1001-150
150 mm 100/Pk.
£15.51
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10434271
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Cytiva
1001-185
185 mm 100/Pk.
£23.09
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11342815
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Cytiva
1001-240
240 mm 100/Pk.
£37.38
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10786262
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Cytiva
1001-270
270 mm 100/Pk.
£46.08
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Estimated Shipment: 16-04-2024
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10134071
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Cytiva
1001-320
320 mm 100/Pk.
£61.73
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15788032
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Cytiva
1001-325
25 mm 100/Pk.
£6.29
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11370394
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Cytiva
1001-329
30 mm 100/Pk.
£6.79
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Estimated Shipment: 12-04-2024
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11340394
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Cytiva
1001-385
385 mm 100/Pk.
£111.90
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Estimated Shipment: 16-04-2024
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11372815
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Cytiva
1001-400
400 mm 100/Pk.
£104.60
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Estimated Shipment: 15-04-2024
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11320394
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Cytiva
1001-6508
10 mm 500/Pk.
£31.05
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12494272
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Cytiva
1001-045
45 mm 100/Pk.
£4.61
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Estimated Shipment: 17-04-2024
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Description

Description

Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Circles are widely used standard grade filter papers for routine applications with medium retention and flow rates.

 

These cellulose filters are used in qualitative analytical techniques to determine and identify materials and for clarifying liquids. 
  • Particle Retention: >11μm
  • Porosity: medium
  • Filtration speed: ASTM™, 40 sec.; Herzberg, 150 sec.
  • Surface: smooth
  • Separates precipitates such as lead sulfate, calcium oxalate (hot) and calcium carbonate
  • Used for soil analysis and seed testing procedures in the agricultural industry
  • Used to separate solid foodstuffs from associated liquid or extract liquid in the food industry
  • Atmospheric dust is collected from airflow and the stain-intensity measured 
  • Impregnated with a chromogenic reagent and color formation quantified by optical reflectance for gas detection

 


Specifications

Specifications

13sec./100mL/sq. in.
Disc
>11 μm
57mL/min. (water)
Grade 1
180 μm
87 g/m2
Cellulose
150 sec.
A widely used standard grade filter paper for routine applications with medium retention and flow rate. It covers a wide range of laboratory applications and is frequently used for clarifying liquids.
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