LECO DETERMINATOR

Written by Rahul Verma | Updated: February 12, 2026

LECO DETERMINATOR

Written by Rahul Verma |  Updated: February 12, 2026

LECO DETERMINATOR

Elemental Analysis is a key component of rubber compound testing and quality assurance. The LECO Determinator is a microprocessor-based instrument that uses high-temperature combustion with infrared (IR) detection to analyze a wide range of organic and inorganic materials. This instrument is ideal for determining the carbon black, sulfur, and nitrogen content of rubber compounds.

The LECO Determinator can analyze samples in accordance with ASTM D1619. This test method is used to determine the sulfur content in carbon black. This method is based on the combustion of the sample in a sealed chamber, with the resulting combustion gases being passed through an IR cell. The IR cell measures the amount of sulfur dioxide generated, which is then converted to a sulfur content value. The LECO Determinator is able to accurately and quickly measure sulfur contents as low as 0.01%.

Furthermore, the instrument provides a highly repeatable and reliable result, as it is able to accurately measure the sulfur content in a wide range of sample sizes and with minimal operator intervention. As such, the LECO Determinator is an ideal solution for rubber testing laboratories and quality assurance departments requiring precise and reliable results.

ABOUT AUTHOR

Rahul Verma

Rahul Verma is a Manager – Sales & Operations at Infinita Lab, where he has been working for the past three years. In this role, he works closely with customers to understand their material testing requirements and provides tailored testing solutions by coordinating with laboratories and technical teams. His work primarily focuses on customer engagement, project coordination, and helping clients identify the most appropriate analytical and characterization techniques for their materials.... Read More

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