The O2/CO2/CH4/H2S/CO Respirometer measures oxygen uptake plus CO2 ,CH4 H2S, CO production or consumption by 1 to 80 liquid or solid samples. Its 0.2 µL O2/hr, sensitivity allows measurement of very low oxidation processes. With high-metabolic option, the respirometer measures respiration rate of composting or fermentation processes. Sample size is not limited, but head-space gas is. Operation is fully computerized, with periodic printing and data storage by IBM-PC compatible computer. Graphs depicting gas exchanges are displayed in real time during experiments, which can last from minutes to months.
Columbus Instruments, 950 N. Hague Ave., Columbus, OH 43204-2121. Tel: (614) 276-0861; Fax: (614) 276-0529; E-mail: 75144.2413@compuserve.com.