Whatman™ Qualitative Filter Paper: Grade 1 Circles

Name: Whatman™ Qualitative Filter Paper: Grade 1 Circles
SKU: FKS11372805

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.

Change view

Catalog Number	Diameter (Metric)	Quantity
FKS11372805	70 mm	100/Pk.
FIS09-805-1B	15 mm	500/Pk.
FKS10193971	30 mm	400/Pk.
FIS09-805A	42.5 mm	100/Pk.
FKS10433891	42.5 mm	100/Pk.
FKS11352805	47 mm	100/Pk.
FIS09-805-345	85 mm	100/Pk.
FKS10738611	85 mm	100/Pk.
FKS11392805	90 mm	100/Pk.
FIS09-805E	110 mm	100/Pk.
FKS11302815	110 mm	100/Pk.
FKS10424081	125 mm	100/Pk.
FKS11322815	150 mm	100/Pk.
FKS10434271	185 mm	100/Pk.
FKS11342815	240 mm	100/Pk.
FIS09-805K	270 mm	100/Pk.
FKS10786262	270 mm	100/Pk.
FIS09-805L	320 mm	100/Pk.
FKS10134071	320 mm	100/Pk.
FKS11370394	30 mm	100/Pk.
FIS09-805-1D	400 mm	100/Pk.

21 Options

Catalog number FKS11372805

View Price:

Diameter (Metric):

70 mm

Quantity:

100/Pk.

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, 70 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)2.75 in.

Diameter (Metric)70 mm

Unit SizePK