EN 24829-1 AC-1991 钢和铸铁.硅总含量的测定.还原硅酸钼分光光度法.第1部分:硅含量介于0.05%和1%之间.修改件(ISO 4829-1-86)
Steel and cast iron; determination of total silicon content; reduced molybdosilicate spectrophotometric method; part 1: silicon content between 0,05 and 1 %; amendment (ISO 4829-1:1986)