Respirometry System – ISO14855, ISO14852

You are here: Home / Products / Respirometry System – ISO14855, ISO14852


  • Measurement of solid or liquid samples
  • Biodegradability measurement under aerobic or anaerobic conditions
  • Multi-channel gas sampler
  • Plug and play design – only two connectors for 12 channel system
  • Automatic humidification
  • User friendly software with on-line measurements and control
  • Temperature range from +3°C to +70°C (+37ºF to 158ºF)
  • Automatic leak detection
  • Mass flow controllers for precise setting and measuring of gas flow in each measuring reactor
  • Other measuring parameters on request
  • Custom design on demand
4.0 MiB


  • Measurement of the aerobic biodegradability of polymer materials

(US Standard ASTM D5338, European Standard ISO 14855)

  • Research and development in the field of biotechnology, biology, environmental sciences, and pharmacy
  • Control of activated sludge processes
  • Monitoring the biological activity of the composting process
  • Industrial waste treatability assessments
  • Biodegradation
  • Toxicity
  • Industrial wastewaters
  • Biomass activity
  • Biogas production
  • Small animals breading (worms)
  • Kinetic measurements

Respirometry System for International Standard ISO/FDIS 14855

ISO 14855 specifies a method for determining the ultimate aerobic biodegradability of plastic materials under controlled composting conditions by gravimetric measurement of the amount of carbon dioxide evolved. The method is designed to yield an optimum rate of biodegradation by adjusting the humidity, aeration and temperature of the composting vessel.

Echo Instruments respirometer system is designed to yield the optimum conditions for biodegradation of a plastic material in compost by precise control: aeration flow, humidity, pressure and temperature in the composting vessel. It also aims to determine the ultimate biodegradability of the test material by using a small-scale reactors with multi-channel gas sampler. The degradation rate is measured by determining the mass of the evolved carbon dioxide using infrared dual channel optical sensor.