About

The Micro-Oxymax is a modular system that can support testing biodegradability in all environments. You can expand an initial configuration for basic investigations to include additional gases and/or chambers later. The software automates many aspects of the test with a single set of sensors to calibrate. It takes only a few minutes to begin a test. The system automatically compensates for changes in pressure and temperature and converts evolved carbon dioxide to STP for easy conversion into milligrams.

Periodic sensing of the gas concentration and equally accurate measurement of the headspace volume allow for calculating incremental and accumulated values for consumption and production. The Micro-Oxymax patented design principle provides a sensing threshold near 2 x 10-7 liters per hour. You can configure the system for single or multiple gas sensing. It can sense oxygen, carbon dioxide, methane, carbon monoxide, hydrogen sulfide, and hydrogen over specially selected ranges to meet almost any application. You can configure the Micro-Oxymax to monitor one chamber up to 80. Internal diagnostics thoroughly tests your chosen configuration and recommends optimizing conditions for a successful test.

• US Patent: No. 4947339
• European Patent: No. 0372429
• Japanese Patent: No. 2117492

Features / Specifications

• Suitable for these Standardized Aerobic and Anaerobic Tests
• ISO 14851
• ISO 14852: Plastics in Aqueous Medium
• ISO 14855
• ISO 15985: Digestion
• EN 13432: Plastics in Compost
• ASTM D5209: Plastics in Sewage Sludge
• ASTM D5210: Plastics in Sewage Sludge
• ASTM D5271
• ASTM D5511: Plastics under High Solids
• ASTM D5338: Plastics in Controlled Compost
• ASTM D5988: Plastics in Soil
• ASTM D6691: Plastic Materials in Marine Environment
• OECD 301B: Biodegradability of the material over a minimum of 28 days in a liquid environment
• OECD 301C
• OECD 301F
• High Sensitivity: 2x10-7 liter of gas per hour

Supported Gases:

• O2: 0-1%, 19-21%, 0-100%
• CO2: 0-1%, 0-3%, 0-10%, 0-100%
• CH4: 0-1%, 0-5%, 0-10%, 0-30%, 0-100%
• CO: 0-1%, 0-10%
• H2: 0-2000ppm
• H2S: 200ppm
• NO2: 150ppm
• N2O: Contact us for available ranges
• Multiple Chamber Sensing: 1 to 80 Chambers
• Fully automated operation
• Maximum Head Space Volume: 50mL to 10L m), H2 (0-2000 and 0-10,000ppm)