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Pulp and Paper

Rapid Solids Testing for Pulp and Paper

Durable, reliable analysis for black liquor

Black liquor is a difficult substance to work with. It’s caustic, it’s toxic, and it emits poisonous gases such as hydrogen sulfide. But the efficient use of black liquor is critical to the profitable operation of any pulp and paper mill. In order to use black liquor efficiently, you need to test it for solids. Make sure your solids analyzer is up to the task.

The Computrac® MAX® 4000XL is the toughest and most accurate solids analyzer on the market today. An all-steel enclosure, and a rugged metal heating element enable the MAX 4000XL to work well in the toughest environments—and it doesn’t get tougher than black liquor. If you currently use a standard oven or a halogen-based moisture analyzer to test your black liquor, give us a call. Our experienced team of analytical chemists and applications consultants will help you find a more robust and reliable method for moisture, solids and ash analysis.


  • Expert Application Support:

    Free sample testing and free application development for as long as you own your Computrac.

  • Accurate:

    Nickel chromium heating element ensures even heating and repeatable results.

  • Durable:

    With a steel enclosure and all-metal heating element, the Computrac® MAX® 4000XL can stand up to the toughest environments.

  • Fast:

    Up to 100 times faster than standard oven reference methods.

  • Simple:

    Get accurate results independent of operator skill.


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