quartz container: l=40 mm, da=9 mm, di=3 mm, (A1, L40D9) set of 100 columns suitable for AOF and AOX sample preparation (e.g. wastewater) acc. to column method suitable for sample preparation systems type L40D9 (of Mitsubishi/A1/Cosa) and APU flexi series (column holders type 1 required) quartz container: l=40 mm, da=9 mm, di=3 mm, (A1, L40D9) set of 100 columns suitable for AOF and AOX sample preparation (e.g. wastewater) acc. to column method suitable for sample preparation systems type L40D9 (of Mitsubishi/A1/Cosa) and APU flexi series (column holders type 1 required)