Special Features:

Zprecision sealed ends; two niosh approved sealing caps; precision lockspring; niosh and osha approved; used in various chemical test procedures; various analytical methods; for test that specifically require all glass wool separators

Properties:

An item designed to be used in conjunction with an electric or manual handheld aspiration pump so as to draw and trap surrounding air vapors. The tube must be chromatographically analyzed, after use, in a laboratory. It does not have an integral indicator or produce colorimetric/color comparative results. It is preferably used in accordance with analytical methods published by the national institute of occupational safty and health administration, environment protection agency, department of health and human services, and/or the environmental protection agency.