ASTM D6483 Standard Test Method for Evaluation of Diesel Engine Oils in T-9 Diesel Engine
12. Report
12.1 Report the following information:
12.1.1 Reporting Test Results - For reference oil tests, the standardized report form set and data dictionary for reporting the test results and for summarizing the operational data are required. The report forms and data dictionary are available at http://www.dgaequipment.com/ or can be obtained in hard copy format from the TMC.
12.1.1.1 During the test, if the engine is shut down or operated out of test limits, record the engine h, time, and data (see Annex A1). In addition, all prior reference oil tests that were deemed operationally or statistically invalid should be noted in the comment section.
12.1.1.2 When reporting reference oil test results, transmit by facsimile (see Annex A1) and any other supporting information to the ASTM TMC within five working days of test completion. Mail a copy of the final test report within 30 days of test completion to:
(1) ASTM Test Monitoring Center
(2) Electronic transfer of test results to the ASTM TMC is also permitted for approved laboratories (see 12.1.3)
12.1.2 Deviations from Test Operational Limits - Report all deviations from specified test operational limits (see Annex A1) under Other Comments.
12.1.3 Electronic Transmission of Test Results - Electronic transfer of the test report can be done utilizing the ASTM Data Communications Committee Test Report Transmission Model (see Section 2 - Flat File Transmission Format), available from the TMC.
13. Precision and Bias
13.1 Precision:
13.1.1 Test precision is established on the basis of operationally valid reference oil test results monitored by the TMC. Research Report RR:D02-1439 contains industry data developed prior to establishment of this test method.
13.1.1.1 Intermediate Precision (formerly called repeatability) Conditions - Conditions where test results are obtained with the same test method using the same test oil, with changing conditions such as operators, measuring equipment, test stands, and time.
13.1.1.2 Intermediate Precision Limit (i.p.) - The difference between two results obtained under intermediate precision conditions that would in the long run, in the normal and correct conduct of the test method, exceed the values in Table 6 in only one case in twenty.
13.1.1.3 Reproducibility Conditions - Conditions where test results are obtained with the same test method using the same test oil in different laboratories with different operators using different equipment.
13.1.1.4 Reproducibility Limit (R) - The difference between two results obtained under reproducibility conditions that would, in the long run, in the normal and correct conduct of the test method, exceed the values in Table 6 in only one case in twenty.
13.1.2 Test precision, as of January 1, 1998, is shown in Table 6.
13.1.3 The TMC will be able to update precision data as it becomes available.
13.2 Bias - Bias is determined by applying an accepted statistical technique to reference oil test results. When a significant bias is determined, a severity adjustment is permitted for non-reference oil test results (see 11.8).
14. Keywords
14.1 cylinder liner wear; diesel engine oil; lead; lubricants; soot; top ring weight loss; T-9 Diesel Engine
