The measurement deviation of particle size analyzer is influenced by various factors, and the following are some possible factors:

The physical properties of the sample: The shape, size, density, and color of the sample can all affect the measurement deviation of the particle size analyzer.

Measurement environment: Measuring environmental factors such as temperature, humidity, and pressure may lead to measurement bias.

Measurement instruments: The technology and performance of particle size analyzers are also important factors that cause measurement bias, including light sources, detectors, and filters.

Skill level of operators: The skill level and experience of operators may also cause measurement bias.

Sample preparation method: The sample preparation method also affects measurement bias. If the sample preparation is improper or does not match the measurement instrument technology, it can lead to measurement bias.