This is the latest national standard for evaluating the performance of an environmentally friendly building material. It systematically describes how to test the various properties of natural fiber-reinforced plastic composite panels, applicable to both solid and hollow structural panels. To comprehensively assess the mechanical, physical, and weathering properties of such panels, the testing methods specified in the standard typically require the use of a series of specialized instruments. Key instruments include intelligent electronic tensile testing machines (universal material testing machines) for determining core mechanical properties such as tensile and bending strength, pendulum impact testing machines for evaluating impact resistance, and xenon lamp aging test chambers and high-low temperature alternating humidity test chambers for detecting long-term aging performance. The latest release of this standard provides a unified and standardized basis for evaluating the performance of this renewable and biodegradable composite panel.