Test Standards
ISO 14855-2:2007, GB/T19277.2-2013
Testing Principle
The test material of this method is a mixture of inoculum of decomposed compost and inert materials (such as sea sand and vermiculite). By controlling the humidity, oxygen permeability and temperature of the compost container, the sample to be analyzed in the reaction chamber is under the action of microorganisms. The biodegradation reaction is carried out through respiration, and oxygen becomes carbon dioxide and is discharged through respiration. The amount of carbon dioxide released is measured by weighing the absorption device equipped with soda lime and sodium talc, and the decomposition rate is calculated by regular measurement.
Features
- Determine the amount of carbon dioxide released by the sample by gravimetric method.
- Using water bath to control the temperature, achieve precise temperature control from room temperature to -80℃, and the temperature adjustment accuracy can reach ±0.2℃
- 18-channel detection system, high experimental efficiency.
Technical Specifications
| Item | Parameter | |
| Reaction system | Channel | 18 units |
| Temperature range | Room temperature -80℃，Stepping 0.1℃ | |
| Temperature control accuracy | ≤±0.2℃ | |
| Reaction flask volume | 500 ml | |
| Testing systems | scope of test | 0~4200g |
| Detection accuracy | ±0.01g | |
| Machine system | Power | 200V AC |
| Power frequency | 50/60 Hz | |
| Working humidity | <60% | |
| Working temperature | 5-40℃ | |
| Total power | 3 KW | |
| Size | 2700mm×560 mm×1800 mm | |
