Whatman Quantitative Filter Papers, Hardened Ashless, Grade 540

Whatman Quantitative Filter Papers, Hardened Ashless, Grade 540

GE’s Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.

Acid-treated for high wet-strength
Extremely low ash content (0.006% ash maximum)
Nominal particle retention of 8 µm
Medium flow rate (Herzberg filtration speed 200 s)
High chemical resistance to strong acid and alkali suspensions

GE Healthcare’s Life Sciences business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes Grade 542 for retention of fine precipitates and Grade 541 for fast filtration. All three grades are designed for use in gravimetric analysis.

Gravimetric analysis of acid and alkali suspensions
GE’s hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.

Specification
Grade :Grade 540
Format :Circles
Type :Hardened Ashless
Typical Particle Retention in Liquid1 :8 µm
Nominal Thickness :160 µm
Typical water flow rate2 :97 ml/min
Nominal Basis Weight :85 g/m²
Nominal Air Flow Rate :13 s/100 mL/in²
Nominal Ash Content3 :0.005%
Material :High-quality cotton linters
Alpha Cellulose Content Min. :≥98%
Typical Trace Element Levels :Aluminium 3.4 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 14.7 µg/g Chromium 1.1 µg/g Copper 8.2 µg/g Iron 16.3 µg/g Lead <0.5 µg/g Magnesium 3.3 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 3.7 µg/g Silicon <6 µg/g Sodium 17 µg/g Zinc 87.8 µg/g
Application :Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.
Diameter :110 mm

Whatman Quantitative Filter Papers, Hardened Ashless, Grade 540 Whatman Filter Papers Range of products are mostly available in ready stock and it can delivered immediately throughout india

Apart from supplying Whatman Filter Papers products in India through dealers network, catering to a variety of customers ranging from Electrical Contractors, Engineering Industries, Turnkey Construction Companies, Railways, Defence Installations, Research Laboratories, Educational Institutes and various Research and Development laboratories of leading national and multinational companies.

We DFT TECH, are Whatman Filter Papers Authorized Distributors, Importers, Stockists, Dealers and Suppliers of Whatman Quantitative Filter Papers, Hardened Ashless, Grade 540 Products in Bagalkot, Bihar, Tiruvannamalai, Villupuram, Cuddalore, Dharwad, Delhi, Amristar, Tirupur, Vellore, Punjab, Chattisgarh, Jharkhand, Viruthachalam, Ambala, Dindugul, Chitoor and etc..