Cytiva Whatman™ Grade 1 Qualitative Filter Papers

Catalog No.	Diameter (Metric)
09-920-115	45 mm

Catalog No. 09-920-115 Supplier Cytiva Supplier No. 1001045

Description

The most widely used filter paper for routine laboratory applications, qualitative analytical separations, and clarifying liquids. The standard grade cellulose filter papers for medium flow rates.

• Used in qualitative analytical techniques to determine and identify materials
• The most widely used filter paper for routine applications with medium retention and flow rate
• Grade 1 covers a wide range of laboratory applications and is frequently used for clarifying liquids
• Used in qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate
• Agriculture: Used for soil analysis and seed testing procedures
• Food Industry: Used for numerous routine techniques to separate solid foodstuffs from associated liquid or extracting liquid. Widely used in education for teaching simple qualitative analytical separations
• Air Pollution Monitoring: Using circles or rolls, atmospheric dust is collected from airflow and the stain-intensity measured photometrically
• Gas Detection: Paper is impregnated with a chromogenic reagent and color formation quantified by optical reflectance

Specifications

• Airflow Rate: 13 s/100 mL/in²
• Basis Weight: 87 g/m²
• Format: Disc
• Material: Cellulose
• Particle Retention: 11 μm
• Flow Rate: 57 mL/min.
• For Use With (Application): Routine Applications with Medium Retention and Flow Rate
• Grade: Grade 1 (Standard)
• Quantity: 100/Pk.
• Thickness (Metric): 180 μm
• Type: Qualitative Filter Paper
• Diameter (Metric): 45 mm