Whatman™ Qualitative Filter Papers: Grade 4 Roll

Filters and retains course particles for monitoring air pollution. Whatman™ Qualitative Filter Papers: Grade 4 Roll is used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

Overview
Brand: Whatman™

Manufacturer Part Number: 1004-648

GRADE 4 REEL 1.5X4.5' D=63MM

UNSPSC: 41120000

Code: A0

Additional Details:
Additional Details: Weight: 0.11000kg



Product Code. 11310454

Quantity Price
1 £ 28.25 / Each
Estimated Shipment
08-03-2017
Add to basket


Description and Specification

Specification

Quantity 1Roll
Width (Metric) 38mm
Particle Retention Coarse particles and gelatinous precipitates
Flow Rate Fast
Format Roll
Length (Metric) 114mm
Thickness (Metric) 210μm
Dimensions (L x W) 114 x 38mm
Pore Size (Metric) 20 to 25μm
Grade 4

 

These cellulose filters are used in qualitative analytical techniques to determine and identify materials and for clarfying liquids. 
  • Particle Retention: 25μm
  • Porosity: Coarse
  • Filtration speed: Herzberg, 37 sec.
  • Surface: smooth
  • Extremely fast filtering  with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
  • Useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis