The GB/T 1730-2007 standard defines a method for determining the Hardness of a paint film using pendulum damping test. This method evaluates the Hardness of a paint film by measuring the oscillation damping of a swinging rod on a film. The shorter the damping time, the lower the Hardness. The standard includes two test methods, A method (König and Persoz swinging rods) and B method (double swinging rods), and specifies specific test conditions and procedures. This method is widely used to evaluate the Hardness of a Coating to ensure its performance Stability in practical applications.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
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