ASTM D4042 Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils
8. Precision and Bias
8.1 The purpose of this test method is to provide a means of sampling dispersions from operating mill systems and to test that sample for ash and iron content. The nature of operating dispersion systems precludes obtaining identical or standard samples for determination of precision and bias data.
9. Keywords
9.1 ash; iron; rolling oil; steel mill
