Index of material risk for the environmental benign design of material

材料风险指数的开发和数值表示几乎所有的金属元素。这些指标包括材料的可持续性指标、对全球变暖的影响指标和材料的毒性指标。标准化是在产品、零件和材料中用相同的程序给出值，以进行比较。并以材料可持续利用指标TMR（Total Materials Requirements）为例进行了应用研究。特别是城市浓缩物这一中间再生材料的评价应用，是随着再生新技术的发展而发展起来的。

The indices of material risk are developed and numerically expressed for almost all the metal elements. The indices are index for materials sustainability, index for the effect on the global warming, and the index for toxicity of material. The normalization is subjected to give the value with the same procedure to be compared among them in the products, parts and ,materials. The application of indices are also developed mainly that of the index of sustainable material use, namely TMR (Total Materials Requirements) are exsamplified. Especially, the application of the evaluation of a midterm recycled material named urban concentrates is newly developed with the development of new technology of recycling.