Filter Paper Whatman No 42 ash less 8 µm Abron AC-606N42
Filter Paper Whatman ashless No 41, 42, 44
For gravimetric analysis finest particle retention of cellulose dia 9cm 11cm or 12.5cm dia pack of 100
AC-606N40 Filter Paper Whatman No 40 ash less 8 µm
AC-606N41 Filter Paper Whatman No 41 ash less 20µm
AC-606N42 Filter Paper Whatman No 42 ash less 2.5µm
AC-606N44 Filter Paper Whatman No 44 ash less 3 µm
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