Whatman™ Qualitative Filter Paper: Grade 1 Sheets
Whatman™ Qualitative Filter Paper: Grade 1 Sheets
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Fisher Catalogue

Whatman™ Qualitative Filter Paper: Grade 1 Sheets

Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Sheets are widely used standard grade filter paper for routine applications with medium retention and flow rates.
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Catalog NumberDimensions (L x W)Quantity
FKS11312825460 x 570 mm (18.11 x 22.45 in.)100 Pk.
Catalog number FKS11312825
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Dimensions (L x W):
460 x 570 mm (18.11 x 22.45 in.)
Quantity:
100 Pk.
Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Sheets are widely used standard grade filter paper 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
DescriptionGrade 1 Qualitative Filter Paper Standard Grade, sheet, 460 × 570 mm
FormatSheet
MaterialCellulose
Particle Retention11 μm
Pore Size11 μm
Filtration Speed150 sec.
Flow RateMedium
For Use With (Application)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.
GradeGrade 1
PorosityMedium
Quantity100 Pk.
Thickness (Metric)180 μm
TypeQualitative Filter Paper
Dimensions (L x W)460 x 570 mm (18.11 x 22.45 in.)
Length (Metric)570 mm
Width (Metric)460 mm
Unit SizePK