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Glow Loss

  • Get accurate insight into organic matter and CaCO₃ content
  • Substantiate the quality of sandy materials with accredited analyses

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Why annealing loss is important for materials analysis

Annealing loss is used to determine how much organic material is present in a sample. This is an important indicator of the quality and applicability of sandy materials, for example.

A too high content of organic material can affect the performance and durability of the material. Therefore, understanding this composition is essential for reliable applications.

At Normec, we perform this test according to RAW 2015 test 28, so you can count on standardized and reliable results.

How we accurately determine annealing loss and CaCO₃ content

During analysis, we measure how much mass a dry sample loses when heated. This provides insight into the organic matter content.

The test consists of the following steps:

  1. 1.

    Weighing the dry material

  2. 2.

    Heating to 500 °C to determine the organic material

  3. 3.

    Weighing the sample again

  4. 4.

    Heating to 900 °C to determine CaCO₃ content

These controlled steps give you an accurate picture of the composition of the material.

Our expertise in civil engineering laboratory testing

Normec specializes in civil and environmental engineering analyses. We combine experience with precise measurement methods and accredited practices.

You can count on:

  • Reliable and reproducible results
  • Execution according to recognized standards
  • Clear and practical reports

What does this mean for you?

  • You gain insight into the organic content of your material
  • You determine the CaCO₃ content for additional quality assessment
  • You prevent risks in application in construction and infrastructure
  • You support material choices with reliable measurement data
  • You comply with relevant standards and specifications

Reliable and sustainable applications

A good understanding of material composition helps you make better choices and reduce risks. With annealing loss analysis, you lay a solid foundation for quality and sustainability.

Want to know more about loss of annealing?

Frequently Asked Questions

Loss of annealing is the mass lost by a material when it is heated. This loss is used to determine the organic matter content.

At 500 °C, the organic matter is burned. At 900 °C, the CaCO₃ content is determined because it decomposes at a higher temperature.

The test is mainly applied to sandy materials.

The analysis is performed according to RAW 2015 test 28.

Our analyses are performed according to standardized and controlled procedures, which ensures reliable results.

You will receive a clear report with the measurement results and explanations.