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QFP-Hardened Ashless Grade 540

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. Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.

1540-321     Grade 540 Circles, 21 mm 100/pk

1540-324     Grade 540 Circles, 24 mm 100/pk

1540-042     Grade 540 Circles, 42.5 mm 100/pk

1540-055     Grade 540 Circles, 55 mm 100/pk

1540-090     Grade 540 Circles, 90 mm 100/pk

1540-110     Grade 540 Circles, 110 mm 100/pk

1540-125     Grade 540 Circles, 125 mm 100/pk

1540-150     Grade 540 Circles, 150 mm 100/pk

1540-185     Grade 540 Circles, 185 mm 100/pk

1540-240     Grade 540 Circles, 240 mm 100/pk

1540-320     Grade 540 Circles, 320 mm 100/pk

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