ASTM D4863 Standard Test Method for Determination of Lubricity of Two-Stroke-Cycle Gasoline Engine Lubricants
10. Report
10.1 Report Forms - The required report forms and data dictionary are available from the ASTM Test Monitoring Center.

10.2 The detailed results obtained from tests on any of the reference oils shall be made available to ASTM Test Monitoring Center upon request so that statistical analysis of test consistency may be made.

11. Retention of Parts and Records
11.1 The testing laboratory shall retain for a minimum of 3 years the log sheets, recordings, and other test records from both non-reference and reference tests, and the original of the Report. A 1-L (1-qt) retain sample from each batch of reference oil and from each batch of test gasoline shall also be retained, recording the amount and type of inhibitors added to the gasoline if such addition is considered to be advisable.

12. Precision and Bias
12.1 Precision - No precision statement can be made as this test determines only that the lubricity of a non-reference oil is or is not equal to or greater than that of a reference oil.

12.2 Bias - The procedure of this test method has no bias because lubricity is defined only in terms of the test method.

NOTE 4 - As stated in 9.3.2, tests run using the same engine cannot be validly compared if they are separated by a shutdown of more than about 1 h. Statistically valid comparisons can be made between sets of tightenings on different oils if, and only if, they have been run as an essentially continuous series. This limitation is well established for the CEC L-19 test on which this test is based, and appears also to apply to this test method.