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f <br />:ors. <br />i by <br />eing <br />it 12 <br />6 the <br />mass <br />9wri- <br />:n be <br />oven <br />noist <br />moist <br />ble if <br />)r an <br />love <br />sed). <br />)era - <br />with <br />I be <br />Eff <br />ing: <br />,step <br />nbe <br />t 1' <br />imp <br />1ho <br />:o ti <br />A <br />12.1.4 Indicate if test specimen contained more than one <br />iterial type (layered, etc.). <br />12.1.5 Indicate the method of drying if different from <br />en -drying at 110 ± 5°C. <br />12.1.6 Indicate if any material (size and amount) was <br />-luded from the test specimen. <br />Precision and Bias <br />13.1 Statement on Bias—There is no accepted reference <br />lue for this test method; therefore, bias cannot be deter - <br />Therefore, results of two properly conducted tests by the <br />same operator with the same equipment should not be <br />considered suspect unless they differ by more than 7.8 <br />percent of their mean. <br />13.2.2 Multilaboratory Precision—The multilaboratory <br />coefficient of variation has been found to be 5.0 percent. <br />Therefore, results of two properly conducted tests by dif- <br />ferent operators using different equipment should not be <br />considered suspect unless they differ by more than 14.0 <br />percent of their mean. <br />13.2 Statements on Precision: 14. Keywords <br />13.2.1 Single -Operator Precision—The single -operator 14.1 consistency; index property; laboratory; moisture <br />efficient of variation has been found to be 2.7 percent. analysis; moisture content; soil aggregate; water content <br />The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection <br />with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such <br />patent rights, and the risk of inftgement of such rights, are entirely their own responsibility. <br />This standard is subod to revision at any time by the responsible technical committee and must be reviewed every five years and <br />N not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards <br />and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible <br />technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your <br />views known to the ASTM Committee on Standards, 1916 Race St., Philadelphia, PA 19103. <br />165 <br />