About this item
Cytiva'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.
Ashless: 0.007% ash maximum for grades 40 to 44 and a maximum of 0.01% for the 589 grades – very pure filters suitable for a wide range of critical analytical filtration procedures.
- 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
Cytiva'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.
Cytiva's 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.
Cytiva's 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.
Cytiva'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.
Cytiva'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.
Specifications
- Catalog No:
- CA11013-738
- CA10147-890
- CA70240-064
- CA28297-374
- CA28297-372
- CA28297-370
- CA10147-986
- CA28297-376
- CA28495-045
- CA28297-368
- CA28495-023
- Thickness:
- 160 µm (typical)
- 160 µm (typical)
- 160 µm (typical)
- 160 µm (typical)
- 160 µm (typical)
- 160 µm (typical)
- 160 µm (typical)
- 160 µm (typical)
- 160 µm (typical)
- 160 µm (typical)
- 160 µm (typical)
- Particle retention:
- 8 µm
- 8 µm
- 8 µm
- 8 µm
- 8 µm
- 8 µm
- 8 µm
- 8 µm
- 8 µm
- 8 µm
- 8 µm
- Filtration speed:
- 200 s (Herzberg)
- 200 s (Herzberg)
- 200 s (Herzberg)
- 200 s (Herzberg)
- 200 s (Herzberg)
- 200 s (Herzberg)
- 200 s (Herzberg)
- 200 s (Herzberg)
- 200 s (Herzberg)
- 200 s (Herzberg)
- 200 s (Herzberg)
- Ash content:
- <0.005%
- <0.005%
- <0.005%
- <0.005%
- <0.005%
- <0.005%
- <0.005%
- <0.005%
- <0.005%
- <0.005%
- <0.005%
- Airflow rate:
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- 13 s/100 ml/in²
- Basis weight:
- 85 g/m²
- 85 g/m²
- 85 g/m²
- 85 g/m²
- 85 g/m²
- 85 g/m²
- 85 g/m²
- 85 g/m²
- 85 g/m²
- 85 g/m²
- 85 g/m²
- Flow rate:
- Medium
- Medium
- Medium
- Medium
- Medium
- Medium
- Medium
- Medium
- Medium
- Medium
- Medium
Specifications
Related Information
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Additional Product Details
Supplier: VWR International
15,73 $ to 345,18 $
Supplier: VWR International
314,91 $