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.

Product Code	Brand	Diameter (Metric)	Quantity
11350394	Cytiva 1001-0155	15 mm	500/Pk.
11302805	Cytiva 1001-020	20 mm	400/Pk.
11312805	Cytiva 1001-025	25 mm	400/Pk.
10193971	Cytiva 1001-030	30 mm	400/Pk.
11332805	Cytiva 1001-032	32 mm	100/Pk.
10433891	Cytiva 1001-042	42.5 mm	100/Pk.
11352805	Cytiva 1001-047	47 mm	100/Pk.
10292221	Cytiva 1001-055	55 mm	100/Pk.
11372805	Cytiva 1001-070	70 mm	100/Pk.
10738611	Cytiva 1001-085	85 mm	100/Pk.
11392805	Cytiva 1001-090	90 mm	100/Pk.
11302815	Cytiva 1001-110	110 mm	100/Pk.
10424081	Cytiva 1001-125	125 mm	100/Pk.
11322815	Cytiva 1001-150	150 mm	100/Pk.
10434271	Cytiva 1001-185	185 mm	100/Pk.
11342815	Cytiva 1001-240	240 mm	100/Pk.
10786262	Cytiva 1001-270	270 mm	100/Pk.
10134071	Cytiva 1001-320	320 mm	100/Pk.
15788032	Cytiva 1001-325	25 mm	100/Pk.
11370394	Cytiva 1001-329	30 mm	100/Pk.
11340394	Cytiva 1001-385	385 mm	100/Pk.
11372815	Cytiva 1001-400	400 mm	100/Pk.
11320394	Cytiva 1001-6508	10 mm	500/Pk.
12494272	Cytiva 1001-045	45 mm	100/Pk.

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

• Airflow Rate: 13sec./100mL/sq. in.
• Format: Disc
• Particle Retention: >11 μm
• Flow Rate: 57mL/min. (water)
• Grade: Grade 1
• Thickness (Metric): 180 μm

• Basis Weight: 87 g/m²
• Material: Cellulose
• Filtration Speed: 150 sec.
• 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.
• Porosity: Medium