Quantitative filter papers, hardened ashless grades, grade 540, Whatman™

供应商: CYTIVA WHATMAN
1540-042 1540-055 1540-090 1540-110 1540-125 1540-150 1540-185 1540-240 1540-320 1540-321 1540-324
WHAT1540-042EA 0 CNY
WHAT1540-042 WHAT1540-055 WHAT1540-090 WHAT1540-110 WHAT1540-125 WHAT1540-150 WHAT1540-185 WHAT1540-240 WHAT1540-320 WHAT1540-321 WHAT1540-324
Quantitative filter papers, hardened ashless grades, grade 540, Whatman™
过滤器 滤纸 Quantitative Filter Paper
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.

  • 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 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.
现在订购

Learn more

About VWR

Avantor is a vertically integrated, global supplier of discovery-to-delivery solutions for...

更多 About VWR