jainsonsindia partners
 Enquiry Cart

Grade 40 Ashless Filter Paper for Pollution Analysis

Grade 40 Ashless Filter Paper for Pollution Analysis

Code:

Grade 40 Ashless Filter Paper for Pollution Analysis

Whatman Grade 40 high-purity filters from GE Healthcare’s Life Sciences business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications.

  • High-purity filters contain 0.007% maximum ash content
  • Medium nominal particle retention rating of 8 µm
  • Medium filtration speed (Herzberg 340 s)
  • Particularly useful for gravimetric analysis

Applications for high-purity Grade 40 filters

High-purity filters support accurate analysis in applications sensitive to very low levels of background contamination and in gravimetric analysis where ash content might affect weight measurements of combusted samples. GE’s high-purity Whatman Grade 40 ashless paper is suited to:

  • Soil analysis, when separating solid matter from aqueous extracts
  • Quantitative determination of milk sediment
  • Use as a clean-up filter for solutions prior to atomic absorption (AA) spectrometry
  • Analysis of constituent components in cements, clays, iron, and steel products
  • Collection of trace elements and radionuclides from the atmosphere

Grade 40: 8 µm

Specifications:

  • Grade: Grade 40
  • Format: Circles/Sheet
  • Type: Ashless
  • Typical Particle Retention in Liquid: 8 µm
  • Typical Water Flow Rate (ml/min) for 9cm diameter: 25
  • Nominal Thickness: 210 µm
  • Nominal Basis Weight: 95 g/m2
  • Nominal Air Flow Rate: 21s/100mL/in2
  • Nominal Ash Content: 0.007%
  • Material: High-quality cotton linters
  • Alpha Cellulose Content Min.: ≥98%
  • Typical Trace Element Levels: Aluminium 2.5 µg/g, Antimony <0.5 µg/g, Arsenic <0.5 µg/g, Barium <0.5 µg/g, Boron <1 µg/g, Calcium 8.3 µg/g, Chromium 1.5 µg/g, Copper 2 µg/g, Iron 12 µg/g, Lead <0.5 µg/g, Magnesium 4 µg/g, Manganese <0.5 µg/g, Mercury <0.5 µg/g, Potassium 2.3 µg/g, Silicon 6.2 µg/g, Sodium 16.8 µg/g, Zinc 64.5 µg/g

 

Ordering Information:

Cat. No.

Diameter (mm.)

Qty.

1440-012

Quantitative Filter Paper, 12.7 mm

400/pk

1440-032

Quantitative Filter Paper, 32 mm

100/pk

1440-042

Quantitative Filter Paper, 42.5 mm

100/pk

1440-047

Quantitative Filter Paper, 47 mm

100/pk

1440-055

Quantitative Filter Paper, 55 mm

100/pk

1440-070

Quantitative Filter Paper, 70 mm

100/pk

1440-090

Quantitative Filter Paper, 90 mm

100/pk

1440-110

Quantitative Filter Paper, 110 mm

100/pk

1440-125

Quantitative Filter Paper, 125 mm

100/pk

1440-150

Quantitative Filter Paper, 150 mm

100/pk

1440-185

Quantitative Filter Paper, 185 mm

100/pk

1440-240

Quantitative Filter Paper, 240 mm

100/pk

1440-917

Quantitative Filter Paper, 460 x 570 mm

100/pk

Be the first to review this product

Write Your Own Review

You're reviewing: Grade 40 Ashless Filter Paper for Pollution Analysis

How do you rate this product? *

 
1 1 star
2 2 star
3 3 star
4 4 star
5 5 star
Quality
Price
Value

Fatal error: Uncaught Exception: Warning: Unknown: write failed: Disk quota exceeded (122) in Unknown on line 0 in /home2/jainsonsindia/public_html/app/code/core/Mage/Core/functions.php:282 Stack trace: #0 [internal function]: mageCoreErrorHandler(2, 'Unknown: write ...', 'Unknown', 0, NULL) #1 {main} thrown in /home2/jainsonsindia/public_html/app/code/core/Mage/Core/functions.php on line 282