这些技术和方法补充了传统的材料识别方法，如硬冲压。它们旨在提高实际符合规范的材料的置信度。交叉引用:BS 5750BS 6200

The techniques and methods supplement traditional methods of material identification like hard stamping. They are intended to increase confidence level in materials actually meeting specification.Cross References:BS 5750BS 6200