GR 44 7CM 100/PK is supplied by the company Whattman PLC.

Grade 44 Ashless Filter Paper is designed ideally for analyses relying on ash-free dry weight. This Grade 44 Ashless Filter Paper is a thin version of grade 42 making it contain a low ash content.

Product specifications:

• Catalog number: 1444-070
• Brand: Whatman
• Quantity/unit: Pack of 100

Product features:

• Diameter: 70mm
• Format: Circle
• Type: Ashless
• Grade: Grade 44
• Basis weight: 80 g/m;2
• Air flow rate: 56 s/100 mL/in2;
• Nominal ash content: 0.007%
• Material: High-quality cotton linters
• Nominal thickness: 176 m
• Typical particle retention in liquid: 3 m
• Typical water flow rate: 11 ml/min
• Alpha cellulose content: 98%