Charcoal Sorbent Tube / standard / 120 pcs,・ The tube is filled with two layers weighing 50 mg and 100 mg of 20-40 mesh activated charcoal, which is highly adsorbent with respect to many nonpolar organic solvents.

・ There are two layers, so breakthrough determinations are possible during measurement.

・ This is compliant with the Japanese Working Environment Measurement Act and NIOSH.

・ The glass tube has been pre-scored to make it easier to cut.,

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