IAPMO TS 26-97e1（R2020）涵盖了材料类型、厚度、螺纹、尺寸和其他重要性能的物理要求和测试，以及所用材料的一般说明。还给出了最终产品的结构和饰面的某些特征，以及标记和识别方法。

IAPMO TS 26-97e1 (R2020) covers physical requirements and tests for types of materials, thickness, threads, dimensions, and other significant properties in addition to general description of materials used. Certain features of construction and finish of the final product are also given, together with the method of marking and identification.