Filter paper Grade: 42, 125 mm

Filter paper Grade: 42, 125 mm

Product Details:


Price And Quantity

  • 1 Unit
  • 3810 INR

Trade Information

  • Udaipur
  • Cheque, Cash in Advance (CID), Cash Advance (CA)
  • 100 Unit Unit Per Month
  • 15 Days
  • All India

Product Description

Filter paper Grade: 42, 125 mm
  • Ashless: 0.007% ash maximum
  • Fine (2.5 micro-m) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation
  • Herzberg filtration speed of 1870 s
  • Commonly used as a calcium carbonate filter

Whatman quantitative papers come in a variety of particle retentions. Also, see hardened ashless grades for work with strong acids or bases.

Ashless paper for gravimetric and instrumental analysis

Whatman Grade 42 quantitative papers from GE Healthcares Life Sciences business are designed for retention of extremely small particles. A common example is the use of Grade 42 as a calcium carbonate filter for analysis in the cement industry.

Other typical precipitates for gravimetric analysis include barium sulfate and metastannic acid for use in glazes, coatings, and pigments. The high purity of GEs Grade 42 filters also makes them suitable for processes that require ashing.

Looking for a filter paper, membrane filter, or syringe filter? Let GE help you find the optimal filter for your needs to ensure reliable analysis.

Product Specification:


Grade 42 Ashless Filter Paper for Instrumental Analysis, 125 mm circle (100 pcs)


Grade 42







Typical Particle Retention in Liquid1

2.5 micro-m

Nominal Thickness

200 micro-m

Typical water flow rate2

5 ml/min

Nominal Basis Weight

100 g/m2

Nominal Air Flow Rate

96 s/100 mL/in2

Nominal Ash Content3



High-quality cotton linters

Alpha Cellulose Content Min.


Typical Trace Element Levels

Aluminium 2.5 micro-g/g Antimony <0.5 micro-g/g Arsenic <0.5 micro-g/g Barium <0.5 micro-g/g Boron <1 micro-g/g Calcium 8.3 micro-g/g Chromium 1.5 micro-g/g Copper 2 micro-g/g Iron 12 micro-g/g Lead <0.5 micro-g/g Magnesium 4 micro-g/g Manganese <0.5 micro-g/g Mercury <0.5 micro-g/g Potassium 2.3 micro-g/g Silicon 6.2 micro-g/g Sodium 16.8 micro-g/g Zinc 64.5 micro-g/g


Designed for gravimetric analysis and the preparation of samples for instrumental analysis.

For critical gravimetric analysis with the finest particle retention.


* Tips on getting accurate quotes. Please include product name, order quantity, usage, special requests if any in your inquiry.

Back to top
THE CHEMICAL CENTER All Rights Reserved.(Terms of Use)
Developed and Managed by Infocom Network Ltd.(Terms of Use)
Developed and Managed by Infocom Network Ltd.