I. Working conditions:

1. Power supply voltage: AC 220V ±10%, 50 Hz, single-phase;

2. Operating temperature: 15–30°C;

3. Relative humidity: ≤80%;

II. System Parameters:

1. Meets the national standard GB/T 19277.1 and is suitable for composting infrared‑based biodegradation testing.

2. Meets the national standard GB/T 19277.2 and is suitable for composting‑based gravimetric biodegradation testing.

3. Complies with the national standard GB/T 19276.2 and is suitable for hydroponic infrared‑based biodegradation testing.

4. Complies with the national standard GB/T 19276.1 and is suitable for electrochemical respiration-based biodegradation testing.

5. Four modules can operate simultaneously;

III. Composting Infrared Detection Module:

(1) Product Applications

1. Complies with GB/T   Testing requirements of Standard 19277.1-2011;

2. Compliant with ISO   Testing requirements of Standard 14855.1;

3. Meets the testing requirements of JIS K 6953-1;

4. Suitable for external testing conducted by quality inspection institutes;

5. Applicable to third-party institutions providing external testing services;

6. Suitable for self‑inspection and formulation optimization by bio-based material manufacturers, among other applications;

7. Suitable for basic research on biodegradation;

(II) Product Features

1. Fully complies with the testing requirements of GB/T 19277.1-2011;

2. High throughput, with up to 24 channels available for simultaneous biodegradability testing;

3. The concentration and total amount of carbon dioxide can be measured online and exported in graphical form. ；

4. Wide detection range, with a maximum detection limit of up to 10,000 ppm;

5. A solid‑state cultivation and open‑air oxygen supply design is employed to simulate a highly aerobic environment.

6. Automatic stirring, automatic water addition, automatic drainage, and air-bath temperature control;

7. Cloud-platform monitoring allows you to view data and curves online;

(3) Product Principle

This experimental system simulates the biodegradation of bio-based materials under aerobic composting conditions. In an aerobic environment, microorganisms utilize the bio-based material as a carbon source, consume oxygen, and produce inorganic compounds such as carbon dioxide and water. The concentration of carbon dioxide is continuously monitored in real time using a high-precision infrared sensor, and by integrating the measured CO₂ concentration with flow rate and time, the total amount of CO₂ released during the sample’s biodegradation can be calculated. The ratio of the experimentally determined CO₂ release to the theoretical CO₂ release serves as the biodegradation rate.

(4) Technical Parameters

1. Working conditions:

1.1 Power supply voltage: AC 220V ±10%, 50 Hz, single-phase;

1.2 Operating temperature: 15–30°C;

1.3 Relative humidity: ≤80%;

1.4 Instrument operational durability: capable of continuous operation over extended periods;

1.5 Maximum power: 7 kW;

1.6 Overall dimensions (L×W×H): 3500 mm × 900 mm × 1600 mm;

1.7 Gross weight: 1000 kg;

2. Oxygen Supply System:

2.1 Pre‑carbonation system: Yes;

2.2 Aeration method: continuous aeration for oxygen supply, with a built-in air pump;

2.3 Air Pump Control: The air pump is divided into 24 channels, each with independent adjustment;

2.4 Flow control method: PLC control; flow rate can be automatically adjusted according to the setpoint.

2.5 Flow control accuracy: ±1%;

2.6 Flow measurement method: Real-time measurement using an electronic flow meter;

2.7 Flow rate measurement range: 0–500 mL/min;

2.8 Equipped with 24 electronic flow meters for flow measurement;

2.9 Traffic control and traffic collection operate independently;

3. Temperature Control System:

3.1 Temperature control method: air bath;

3.2 Temperature range setting: room temperature to 90°C, with a step size of 0.1°C;

3.3 Temperature control accuracy: ≤±0.1℃;

4. Reactor System:

4.1 Number of channels: ≥24;

4.2 Reactor volume: ≥2000 mL;

4.3 Reactor Design: Double-Layer Design;

4.4 Water-adding method: Automatic and manual water-adding options are available;

4.5 Mixing method: Automatic and manual mixing are both available;

4.6 Agitator Shaft Design: Bottom Agitation;

4.7 Gas supply method: bottom gas supply;

5. Condensation Dehumidification System:

5.1 System Composition: low-temperature constant-temperature bath, fully automatic condenser flask, and dehumidification flask;

5.2 Channel Configuration: Each channel is equipped with a condensation bottle and a desiccant bottle.

5.3 Condensation Method: The condenser is equipped with a water bath for condensation.

5.4 Condensing Temperature: The condensing temperature can be as low as -4°C;

5.5 Drainage Method: Condensate water can be automatically discharged on a timed basis;

5.6 Dehumidification method: The dehumidification bottle features a double-layer design;

5.7 Connection Method: The condenser flask and the dehumidifier flask are connected in series;

6. Detection System:

6.1 Detection method: Infrared sensors detect carbon dioxide, The oxygen sensor detects oxygen. ；

6.2 Number of probes: infrared probe 2 one, Oxygen sensor 2 one;

6.3 Display Mode: Concentration and Total amount Dual-display synchronization ；

6.4 Detection range: Carbon dioxide 0–10,000 ppm, Oxygen 0–21.0% ；

6.5 Resolution: Carbon dioxide 1 ppm, oxygen 0.1% ；

6.6 Data acquisition interval: 5 min;

6.7  Probe dehumidification protection system: Yes;

6.8 Gas chromatograph: can be used in conjunction;

6.9 Anaerobic Biodegradation Test: Available;

7. Software System:

7.1 Software control system with independent intellectual property rights;

7.2 The software collects data and can generate real-time data curves.

7.3 Host System: Professional editions of Windows 7, 8, 10, etc.;

7.4 Data Storage Method: Real-time storage is supported during experiments.

7.5 Equipped with a cloud platform, enabling remote access to data.

(5) Standard Configuration

IV. Composting Weighing Method Detection Module:

(1) Product Applications

1. Complies with GB/T   Testing requirements of Standard 19277.2;

2. Can be used for the biodegradability testing of composting methods;

3. Determination of carbon dioxide production by gravimetric analysis;

    4. Applicable to the determination of biodegradability for bio-based products, plastics, and other materials;

(II) Product Features

1. The carbon dioxide release of the sample was determined by the automated gravimetric method.

2. A 12-channel detection system ensures high experimental efficiency.

3. Online measurement of carbon dioxide mass, displayed in graphical form;

4. Automatic weighing, automatic mixing, automatic water addition, and automatic drainage;

5. A solid‑state cultivation and open‑air oxygen supply design is employed to simulate a highly aerobic environment.

6. Air bath temperature control, with temperature adjustment accuracy up to ±0.1℃;

(3) Product Principle

This experimental system can simulate the biodegradation process of bio-based materials under aerobic composting conditions. In an aerobic environment, microorganisms metabolize the bio-based material as a carbon source, consuming oxygen and producing inorganic products such as carbon dioxide and water; the generated carbon dioxide is then absorbed by the alkaline substance in the absorption bottle. Once the automatic weighing sequence is initiated, the robotic arm lowers the mirrored stainless-steel platform, allowing the absorption bottle to rest naturally on the weighing sensor. The sensor collects weight data and transmits it in real time to the PLC controller. Upon completion of the weighing, the robotic arm lifts the absorption bottle, ensuring complete separation from the weighing sensor. After a preset time interval, the system automatically starts the next weighing cycle. By continuously monitoring the weight of the absorption bottle via the automated weighing unit, the increase in weight corresponds to the amount of carbon dioxide released during the sample’s biodegradation. The ratio of the measured carbon dioxide release to the theoretical carbon dioxide release—expressed as a percentage—represents the biodegradation rate. 。

(4) Technical Parameters

1. Working conditions:

1.1 Power supply voltage: AC 220V ±10%, 50 Hz, single-phase;

1.2 Operating temperature: 15–30°C;

1.3 Relative humidity: ≤80%;

1.4 Instrument operational durability: capable of continuous operation over extended periods;

1.5 Total machine power: 4 kW;

1.6 Overall dimensions (L×W×H): 2000 mm × 925 mm × 1600 mm;

1.7 Gross weight: 770 kg;

2. Oxygen Supply System:

2.1 Pre‑carbonation system: Yes;

2.2 Aeration method: continuous aeration for oxygen supply, with a built-in air pump;

2.3 Air Pump Control: The air pump is divided into 12 channels, each with independent adjustment;

2.4 Flow control method: PLC control; flow rate can be automatically adjusted according to the setpoint.

2.5 Flow control accuracy: ±1%;

2.6 Flow measurement method: Real-time measurement using an electronic flow meter;

2.7 Flow rate measurement range: 0–300 mL/min;

2.8 Equipped with 12 electronic flow meters for flow measurement;

2.9 Traffic control and traffic collection operate independently;

3. Temperature Control System:

3.1 Temperature control method: air bath;

3.2 Temperature range setting: room temperature to 90°C, with a step size of 0.1°C;

3.3 Temperature control accuracy: ≤±0.1℃;

4. Reactor System:

4.1 Number of channels: ≥12;

4.2 Reactor volume: ≥2000 mL;

4.3 Reactor Design: Double-Layer Design;

4.4 Watering Method: Automatic Watering And manual water refilling is optional. ；

4.5 Mixing Method: Automatic Mixing And manual stirring is optional. ；

4.6 Reaction vessel material: high-borosilicate hard glass;

4.7 Gas supply method: bottom gas supply;

5. Condensation Dehumidification System:

5.1 System Composition: low-temperature constant-temperature bath, fully automatic condenser flask, and dehumidification flask;

5.2 Channel Configuration: Each channel is equipped with a condensation bottle and a desiccant bottle.

5.3 Condensation Method: The condenser is equipped with a water bath for condensation.

5.4 Condensing Temperature: The condensing temperature can be as low as -4°C;

5.5 Drainage Method: Condensate water can be automatically discharged on a timed basis;

5.6 Dehumidification method: The dehumidification bottle features a double-layer design;

5.7 Connection Method: The condenser flask and the dehumidifier flask are connected in series;

6. Absorption Unit

6.1 Number of channels: 12 channels;

6.2 Absorption bottles: two per channel, for a total of 24.

6.3 Absorption bottle specifications: 500 mL, diameter 80 mm; height 170 mm;

7. Detection System:

7.1 Testing Method: Weighing sensor detection, PLC data processing ；

7.2 Detection range: 0–2000 g;

7.3 Measurement accuracy: ±0.01 g;

7.4 Testing cycle: Can be used continuously over the long term;

7.5 Water removal system: Yes;

8. Software System:

8.1 Software control system with independent intellectual property rights;

8.2 The real-time display page shows the flow rate of each channel and the cumulative weight of carbon dioxide.

8.3 Corresponding cumulative curves and velocity profiles can be generated based on the collected data; these curves can be updated in real time.

8.4 The weighing cycle can be set automatically;

8.5 Data for any time period can be exported.

8.6 Host System: Windows 7/8/10 and other professional editions;

8.7 Data Storage Method: Real-time storage is supported during the experiment.

8.8 Equipped with a cloud platform, enabling remote access to data.

(5) Standard Configuration

V. Hydroponic Infrared Detection Module:

(1) Product Applications

1. Meets the testing standards specified in GB/T 19276.2-2003;

2. Meets the testing standards specified in GB/T 33616-2017;

3. Meets the testing requirements of GB/T 40612-2021;

4. Meets the testing requirements of GB/T 40367-2021;

5. Meets the testing standards specified in ISO 14852-1999;

6. Meets the testing standards specified in ISO 19679-2020;

7. Can be used for biodegradation testing in the activated sludge process;

8. Can be used for bio-based biodegradability testing;

(II) Product Features

1. Fully complies with the testing requirements of GB/T 19276.2;

2. Up to 12 channels can be used simultaneously for biodegradability testing;

3. Online measurement of carbon dioxide concentration and total amount;

4. Displays both carbon dioxide concentration and cumulative total, with the option to export data in chart format. ；

5. Employing a water-based cultivation and open‑oxygen‑supply design to simulate a highly aerobic environment;

6. Air bath temperature control with a temperature regulation accuracy of ±0.1℃;

7. Magnetic stirring system, providing long-term stirring;

8. Cloud-platform monitoring allows real-time online observation of data and trend curves.

(3 ) Product Principle

This experimental system simulates the biodegradation of bio-based materials under aerobic hydroponic conditions. In an aerobic hydroponic environment, microorganisms utilize the bio-based material as a carbon source, consuming oxygen and producing inorganic compounds such as carbon dioxide and water. The concentration of carbon dioxide is monitored in real time using a high-precision infrared sensor, and by integrating the measured CO₂ concentration with flow rate and time, the total amount of CO₂ released during the sample’s biodegradation can be calculated. The ratio of the experimentally determined CO₂ release to the theoretical CO₂ release serves as the biodegradation rate.

(4) Product Specifications

1. Working conditions:

1.1 Power supply voltage: AC, 220 V ± 10%, 50 Hz, single-phase;

1.2 Operating temperature: 15–30°C;

1.3 Relative humidity: ≤80%;

1.4 Instrument operational durability: capable of continuous operation over extended periods;

1.5 Maximum power: 5 kW;

1.6 Overall dimensions (L×W×H): 2000 mm × 900 mm × 1600 mm;

1.7 Gross weight: 550 kg;

2. Oxygen Supply System:

2.1 Aeration method: continuous aeration for oxygen supply, with a built-in air pump;

2.2 Air Pump Control: The air pump is divided into 12 channels;

2.3 Flow control method: PLC-controlled; flow rate is automatically adjusted according to the setpoint.

2.4 Flow control accuracy: ±1%;

2.5 Flow measurement method: Real-time acquisition using an electronic flow meter;

2.6 Flow rate measurement range: 0–300 mL/min;

2.7 Equipped with 12 electronic flow meters for flow measurement;

2.8 Traffic control and traffic collection operate independently;

3. Temperature Control System:

3.1 Temperature control method: air bath;

3.2 Temperature range setting: room temperature to 90°C, with a step size of 0.1°C;

3.3 Temperature control accuracy: ≤±0.1℃;

4. Reaction System:

4.1 Number of channels: ≥12;

4.2 Stirring method: 12-channel magnetic stirring;

4.3 Reaction mode: liquid-phase reaction;

4.4 Reaction vessel volume: 500 mL;

4.5 Decarbonization system: Yes;

4.6 Condensation system: Yes;

5. Condensation Dehumidification System:

5.1 System Composition: low-temperature constant-temperature bath, fully automatic condenser flask, and dehumidification flask;

5.2 Channel Configuration: Each channel is equipped with a condensation bottle and a desiccant bottle.

5.3 Condensation Method: The condenser is equipped with a water bath for condensation.

5.4 Condensing Temperature: The condensing temperature can be as low as -4°C;

5.5 Drainage Method: Condensate water can be automatically discharged on a timed basis;

5.6 Dehumidification method: The dehumidification bottle features a double-layer design;

5.7 Connection Method: The condenser flask and the dehumidifier flask are connected in series;

6. Detection System:

6.1 Detection method: Infrared sensors detect carbon dioxide, The oxygen sensor detects oxygen. ；

6.2 Number of probes: 1 infrared probe, Oxygen sensor 1;

6.3 Display Mode: Simultaneous dual display of concentration and total amount ；

6.4 Detection range: Carbon dioxide 0–5000 ppm, Oxygen 0-21.0% ；

6.5 Resolution: Carbon dioxide 1 ppm, oxygen 0.1% ；

6.6 Data Acquisition Interval: 5 minutes;

6.7 Probe dehumidification protection system: Yes;

6.8 Temperament analyzer: can be used in conjunction;

6.9 Anaerobic Biodegradation Test: Can be conducted;

7. Software Control System:

7.1 Software control system with independent intellectual property rights;

7.2 The software collects data and can generate real-time data curves.

7.3 Host System: Professional editions of Windows 7, 8, 10, etc.;

7.4 Data Storage Method: Real-time storage is supported during experiments.

7.5 Equipped with a cloud platform, enabling remote access to data.

7.6 Operational Durability: Capable of continuous operation for more than 6 months.

(5) Product Configuration

VI. Electrolytic Respiration Detection Module:

(1) Product Applications

1. It can be used for bio-based biodegradability testing and complies with GB/T. 19276-1;

2. Can be used for seawater-based biodegradability testing, GB/T 40611-2021;

3. It can be used for tests to assess the potential biodegradability of materials under the action of specific microorganisms. ， GB/T 19275-2003;

4. It can be used for rapid biodegradability testing of chemicals, in accordance with GB/T 21801, GB/T 21802, and GB/T 21803.

5. Meets international standards such as OECD 301C, OECD 301F, OECD 302C, EC‑Part C4, and ISO 5815‑1:2003;

6. Meets international standards for testing and research, including OECD, EEC, ASTM, BBA, ISO, and MITI.

7. It can be used for the determination of BOD3, BOD5, BOD7, BOD28, BOD42, and other parameters.

8. Can be used for biodegradation testing in the activated sludge process;

9. It can be used for microbial respiration measurements.

(II) Product Features

1. Determine the actual oxygen consumption of the sample by measuring charge transfer.

2. No sample dilution required: the upper detection limit can reach 10,000 mg.

3. Continuous electrolytic oxygen supply: Each bottle of electrolyte can provide several years’ worth of electrolytic oxygen.

4. Precision Temperature Control: Air-bath temperature control, with a setpoint range of 5–90°C and a temperature adjustment accuracy of ±0.1°C.

5. Number of channels: Each instrument includes 12 detection channels.

6. Magnetic stirring system: provides long-term stirring;

7. Data Output System: Processed by a dedicated software application on a computer, with an LCD display;

(3) Product Principle

Microorganisms consume oxygen in the culture flask and produce carbon dioxide; the carbon dioxide is absorbed by quicklime, causing the pressure inside the flask to decrease. This pressure differential drives the pressure gauge, closing the electrolytic circuit. The copper sulfate solution in the electrolytic cell is then electrolyzed, generating oxygen that replenishes the culture flask and gradually restores its pressure to the initial level. The amount of electric charge passed into the electrolytic cell is directly proportional to the volume of oxygen produced; a coulometer accurately measures this charge, enabling calculation of the oxygen consumption. The ratio of the actual oxygen consumption to the theoretical oxygen consumption yields the biodegradation rate of the test sample.

(4) Technical Parameters

1. Working conditions:

1.1 Power Supply Voltage: AC 220V±10%   50 Hz Single-phase;

1.2 Operating temperature: 15–30°C;

1.3 Relative humidity: ≤80%;

2. Oxygen Supply System:

2.1  Oxygen supply method: Closed-loop copper sulfate electrolysis oxygen generation;

2.2 Internal electrolyte of the electrolytic cell: saturated copper sulfate solution;

2.3 Activation and Deactivation of Electrolysis: Air pressure on both sides of the U-tube;

2.4 Electrolytic accuracy: sensitivity of 9.806 Pa, with an internal saturated copper sulfate solution;

2.5 Electrodes: platinum (positive electrode), copper (negative electrode);

2.6 Electrolysis cell material: high-borosilicate hard glass;

3. Temperature Control System:

3.1  Temperature control method:   Air bath;

3.2 Temperature setting range: 5–90°C, in increments of 0.1°C;

3.3 Temperature accuracy: ≤±0.1℃;

4. Reaction System:

4.1 Reaction mode: liquid-phase reaction;

4.2 Reaction System: Closed-loop electrolytic reaction;

4.3 Stirring method: 12-channel magnetic stirring;

4.4 Culture flask volume: 500 ml optional;

4.5 Decarbonization system: None;

4.6 Condensation system: None;

5. Detection System:

5.1 Detection Principle: The coulometric method measures charge transfer, with four charges corresponding to one oxygen molecule.

5.2 Current measurement range: 0–140 mA;

5.3 Measurement accuracy: ≤±0.001 mA;

6. Software Control System:

6.1 Software control system with independent intellectual property rights;

6.2 The software collects data and can generate real-time data curves.

6.3 Host System: Professional editions of Windows 7, 8, 10, etc.;

6.4 Data Storage Method: Real-time storage is supported during the experiment.

6.5 Equipped with a cloud platform, enabling remote access to data.

(5) Standard Configuration