摘要
重申了YB T 0 81- 1996中规定的关于冶金标准的数值修约与判定原则 ;介绍了什么是数值的有效位数与“有效数字” ;用实例详细说明了在制定标准和执行标准时 ,对产品的尺寸、化学成分、力学性能等指标参数数值 。
Restate the rule for rounding off numerical value and determing principle of metallurgieal standard regulated by YB/T 081-1996, introduce what the effective digit and effective figure are, explain how to correctly choose effective digit facing produets' size,chemical component and mechanical capability when drawing and carrying out standards.
出处
《冶金标准化与质量》
2003年第6期1-4,共4页
Metallurgical Standardization & Quality
