ASTM D5373 Carbon Hydrogen Nitrogen Analyzer CHN Elemental Tester for Coal Soil Petroleum Urea Element Analysis Equipment

ASTM D5373 Carbon Hydrogen Nitrogen Analyzer CHN Elemental Tester for Coal Soil Petroleum Urea Element Analysis Equipment

Scope of Application

Primarily applicable to the determination of carbon, hydrogen, and nitrogen content in solid and liquid samples (including urea) across sectors such as electric power, coal, metallurgy, petrochemicals, coal chemicals, environmental protection, cement, papermaking, geological exploration, scientific research institutions, and solid/hazardous waste management.

Standards Compliance

GB/T 483 "General rules for analytical and testing methods of coal"

GB/T 30733 "Determination of carbon, hydrogen and nitrogen in coal—Instrumental method"

JJF 1321 "Calibration specification for elemental analyzers"

ASTM D5373 "Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke"

GB 29518 "Diesel engines—NOx reduction agent AUS 32—Urea aqueous solution"

Key Advantages

1. Precise, Reliable Performance and Strong Regulatory Compliance

The instrument features an exceptionally wide linear detection range—measuring Carbon (0.005%–100%), Hydrogen (0.01%–60%), and Nitrogen (0.008%–60%)—with low detection limits that accommodate samples ranging from trace to high concentrations. It delivers excellent repeatability (Carbon ≤0.5%, Hydrogen ≤0.15%, Nitrogen ≤0.08%) and utilizes high-precision temperature control (±1°C) to ensure stable, accurate data. Furthermore, the instrument fully complies with domestic standards such as GB/T 483, GB/T 30733, and JJF 1321, as well as the international standard ASTM D5373, ensuring authoritative and compliant results.

2. High Automation and Outstanding Testing Efficiency

The system employs a fully automated operation mode—including automatic sample feeding and dropping—eliminating the need for manual sample handling and significantly reducing labor costs. Analysis takes just 6–8 minutes per sample, ensuring a rapid turnaround. It comes standard with a 39-sample capacity per batch, with an optional 78-sample tray available; samples can be added or replaced at any time during testing, providing robust batch processing capabilities that effectively boost overall laboratory efficiency.

3. Broad Application Scope and Excellent Sample Compatibility

Suitable for diverse sectors including power generation, coal, metallurgy, petrochemicals, environmental protection, cement, geological exploration, and solid/hazardous waste management. It accurately determines Carbon, Hydrogen, and Nitrogen content in both solid and liquid samples (including urea) and is compatible with a wide range of typical materials—such as coal, coke, and diesel engine reducing agents (AUS 32)—meeting the elemental analysis needs of various industries and sample types. 4. User-friendly structural design for convenience and adaptability

Featuring a horizontal design, the instrument can be placed directly on a laboratory benchtop, fitting seamlessly into existing lab spaces and offering flexible installation options. The operation process is straightforward, with no stringent laboratory requirements or need for complex site modifications or specialized auxiliary equipment. Operators can easily add samples and monitor the testing process in real-time, ensuring a convenient user experience.

Technical Features

1. Accommodates 39 samples at a time (with an optional double-layer tray for 78 samples); the instrument automates sample feeding, dropping, and cyclic testing, requiring no manual intervention after loading, while allowing samples to be added, removed, or replaced at any time during analysis;

2. Horizontal design allows for convenient benchtop placement and operation;

3. Utilizes an advanced PID algorithm for temperature control, achieving ±1°C precision in the furnace and ±0.1°C precision in the constant-temperature chamber and gas reservoir;

4. Employs absolute pressure sensors to monitor pressure across the entire gas system, enabling automatic leak testing for the gas lines, furnace, infrared cell, thermal conductivity cell, and gas reservoir;

5. Determines carbon and hydrogen content via infrared absorption spectroscopy and nitrogen content via the thermal conductivity method;

6. Offers rapid testing and high automation, with analysis times for carbon, hydrogen, and nitrogen ranging from 6 to 8 minutes;

7. Includes an "automatic cool-down" option; upon completion, the computer shuts down and the instrument cools down automatically, enabling unattended operation without the need for manual intervention;

8. Test reports can be customized to meet specific client requirements, reducing the user's workload;

9. Supports integration with laboratory management systems, enabling seamless balance data transfer, as well as backup and uploading of test results.

IASTM D5373 Carbon Hydrogen Nitrogen Analyzer CHN Elemental Tester for Coal Soil Petroleum Urea Element Analysis Equipment

Technical Specification