Grade 1V Filter Paper for General Filtration

Whatman Grade 1V lab filter paper from GE Healthcare’s Life Sciences business is a widely used pre-folded filter for many general filtration applications.

• Nominal particle retention rating of 11 µm supports general filtration
• Intermediate filtration speed (Herzberg 150 s)
• Pre-folded filter for ease-of-use and time savings with conical filter funnels; avoids the need to quadrant-fold circles

Whatman pre-folded general filter paper

As the pleated and pre-folded version of Whatman filter paper 1, Grade 1V is well suited for qualitative analysis in routine applications including:

• Separations of lead sulfate, hot calcium oxalate, and calcium carbonate
• Agriculture, for soil analysis
• Food quality testing to separate solid foodstuffs from associated liquid
• Education, to teach simple qualitative analysis

Specifications:

• Grade: Grade 1V
• Grade Type: Folded (Prepleated)
• Typical Particle Retention in Liquid: 11 µm
• Typical Water Flow Rate (ml/min) for 9cm diameter: 57
• Nominal Thickness: 180 µm
• Nominal Basis Weight: 87 g/m²
• Material: Cellulose
• Typical Trace Element Levels: Aluminium 3.6 µg/g, Antimony <0.5 µg/g, Arsenic <0.5 µg/g, Barium <0.5 µg/g, Boron <1 µg/g, Calcium 27.5 µg/g, Chromium 1 µg/g, Copper 0.9 µg/g, Iron 13.7 µg/g, Lead <0.5 µg/g, Magnesium 21 µg/g, Manganese <0.5 µg/g, Mercury <0.5 µg/g, Potassium 6.2 µg/g, Silicon 8.8 µg/g, Sodium 32.3 µg/g, Zinc 58.3 µg/g

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