ASTM D7038 Standard Test Method for Evaluation of Moisture Corrosion Resistance of Automotive Gear Lubricants
13. Final Test Report
13.1 For reference oil tests, use the standardized report set available from the ASTM TMC.
NOTE 3 - Report the non-reference oil test results on these same forms if the results are intended to be submitted as candidate oil results against a specification.
13.1.1 Fill out the report forms according to the formats shown in the data dictionary.
13.1.2 Transmit results to the TMC within 5 working days of test completion.
13.1.3 Transmit the results electronically as described in the ASTM Data Communications Committee Test Report Transmission Model (Section 2 - Flat File Transmission Format) available from the ASTM TMC. Upload files via the TMC's website.
13.2 Report all reference oil test results, whether aborted, invalidated, or successfully completed, to the TMC.
13.3 Deviations from Test Operational Limits - Report all deviations from specified test operational limits.
13.4 Precision of Reported Units - Use the Practice E29 rounding off method for critical pass/fail test result data. Report the data to the same precision as indicated in data dictionary.
13.5 In the space provided, note the time, date, test hour, and duration of any shutdown or off-test condition. Document the outcome of all prior reference oil tests from the current calibration sequence that were operationally or statistically invalid.
13.6 If a calibration period is extended beyond the normal calibration period length, make a note in the comment section and attach a written confirmation ofthe granted extension from the TMC to the test report. List the outcomes of previous runs that may need to be considered as part of the extension in the comment section.
14. Precision and Bias
14.1 Precision:
14.1.1 Test precision is established on the basis of operationally valid reference oil test results monitored by the TMC. Test precision shown in Table 2 is considered current as of Feb.16, 2005. Research Report RR:D02-1554 contains industry data developed prior to establishment of this test method.
14.1.2 Intermediate Precision Conditions - Conditions where test results are obtained with the same test method using the same oil, with changing conditions such as operators, measuring equipment, test stands, test engines and time.
NOTE 4 - Intermediate precision is the appropriate term for this method rather than repeatability, which defines more rigorous within-laboratory conditions.
14.1.3 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 shown in Table 2 in one case in twenty.
14.1.4 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.
14.1.5 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 2 only in one case in twenty.
14.2 Bias - Bias will be determined by applying an accepted statistical technique to reference oil test results, and when a significant bias is determined, a severity adjustment will be permitted for non-reference oil test results.
15. Keywords
15.1 corrosion; final drive axle; gear failure; gears; lubricants; L-33-1; moisture; rust
