標準號：BS 7926-1998
中文標準名稱：鑄鋼非金屬夾雜物百分比含量測定的定量顯微照相法
英文標準名稱：Quantitative micrographic methods to determine the percentage content of non-metallic inclusions in cast steel
標準類型：H25
發(fā)布日期：1998/8/15 12:00:00
實施日期：1998/8/15 12:00:00
中國標準分類號：H25
國際標準分類號：77.080.20
適用范圍：This British Standard specifies two micrographic methods for determining the non-metallic inclusion content of cast steels. Numerical values of the area fraction of non-metallic inclusions present in samples of cast steels is specified. The percentage content ranges of non-metallic inclusions are specified for four melting and refining methods in use in steel foundries throughout the UK. In addition to the definitive requirements, this standard also requires the items detailed in clause 4 to be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied.