Whatman™ Qualitative Filter Paper: Grade 1 Circles
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Fisherbrand

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.
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Catalog NumberDiameter (Metric)Quantity
FKS1578803225 mm100/Pk.
FKS1139280590 mm100/Pk.
FKS11302815110 mm100/Pk.
FKS10424081125 mm100/Pk.
FKS11322815150 mm100/Pk.
FKS10434271185 mm100/Pk.
FKS1249427245 mm100/Pk.
Catalog number FKS15788032
Price (MYR)
114.00
Pack
Diameter (Metric):
25 mm
Quantity:
100/Pk.
Price (MYR)
114.00
Pack
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
Airflow Rate13sec./100mL/sq. in.
Basis Weight87 g/m2
DescriptionGrade 1 Qualitative Filter Paper Standard Grade, circle, 25 mm
FormatDisc
MaterialCellulose
Particle Retention>11 μm
Filtration Speed150 sec.
Flow Rate57mL/min. (water)
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
Diameter (English)0.98 in.
Diameter (Metric)25 mm
Unit SizePack