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This is a pack of 100 circular paper filter discs sized to fit the centrifuge extractor bowl rim, re..

This is Whatman No.1 equivalent qualitative filter paper for CBR testing, 150mm diameter circles, su..

This is an A4 cross-section paper pad, 100 sheets, printed with a 5mm grid, used for plotting cross-..

This is the same Grade 5 fine qualitative filter paper as the 150mm version, sized down to 110mm dia..

This is Grade 5 qualitative cellulose filter paper, 150mm diameter circles, offering fine particle r..

Sodium sulphate, 3kg pack, used in soundness testing of aggregates.

A pack of coarse-grade circular filter papers, 150mm diameter, placed between the soil specimen and ..