標準號：SIS SS 11 11 16-1987
中文標準名稱：鋼．非金屬雜質含量評價方法，顯微鏡法非金屬雜質含量評價Jernkontorets雜質圖表II
英文標準名稱：Steel - Method for assessment of the content of non-metallic inclusions - Microscopic methods - Jernkontorets inclusion chart II for the assessment of non-metallic inclusions
發(fā)布日期：1987/6/25 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：This standard is applicable in the first place to the assessment of non-metallic inclusions in plastic formed steels.The method can also be applied to the assessment of inclusions in other wrought metallic materials with analogue distribution of inclusions and to cast and sintered steels.The following points shall be given in a product standard, or a delivery requirement, or be agreed between the parties.- assessment alternative- the size of the inclusions which shall be covered by the assessment- the diameter of the field of vision (when the frequency-method is used, see clause 7.2.1)- amount of inspection- position of sample surface in product- recording of results- any cleanness requirements on the steel to be tested