H-B DURAC Plus ASTM Like Liquid-In-Glass Thermometer, 97F / Tank, Total Immersion, 0 to 120F, Organic Liquid Fill (B60750-5500) Range: 0 to 120F; divisions: 1; length: 303mm; immersion length: total ASTM number: 97F; ASTM method: tank Blue spirit liquid thermometer with white back glass is safer to use than mercury counterparts Ideal for use in quality control laboratories or when mercury filled thermometers cannot be used, but ASTM standards are still needed Feature blue organic liquid fill against lead-free white back glass