Whatman 1443150 Grade 43 Quantitative Filter Paper Ash less Filter Circles, 150 mm, Maximum Volume 674 ml/m (Pack of 100)

These are the supreme quantitative filter papers featuring high wet strength and chemical resistance. These papers are acid-hardened, which reduces ash to an extremely low level. The tough surfaces pf these filters make them suitable for a wide range of critical analytical filtration operations. Each grade offers a convenient combination of filtration speed and particle retention.

• The general purpose hardened ashless filter paper with medium retention and flow rate
• Extremely pure and strong with a hard surface
• High chemical resistance to strong acid and alkali
• Model: 0898R72PK