{"version":"1.0","type":"link","title":"Spark testing - Newikis","description":"Spark testing is a method of determining the general classification of ferrous materials. It normally entails taking a piece of metal, usually scrap, and applying it to a grinding wheel in order to observe the sparks emitted. These sparks can be compared to a chart or to sparks from a known test…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://upload.wikimedia.org/wikipedia/commons/e/ef/SparkTestToolSteel.jpg","thumbnail_width":500,"thumbnail_height":500}