ASTM International's In-Service Oil Proficiency Testing Program is a statistical quality assurance tool enabling labs to compare, improve, and maintain a high level of performance in conducting tests per ASTM Intl. methods or other methods used by the lab.
Conducted three times annually, this program provides (for each test cycle) a 250 ml container of in-service diesel engine lubricating oil, data reports forms, and test instructions. A different in-service diesel engine lubricating oil will be used for each test cycle. Labs perform the tests that are normally conducted within their facility. Labs are encouraged to use the ASTM International methods, as written, however, the program will allow labs to use other methods. The other methods utilized, or any deviations from the ASTM Intl. method, must be documented with the data report form.
Test data and related information returned to ASTM Intl. will be used in generating statistical summary reports that are returned electronically to each lab. Reports contain:
- Coded laboratory test results
- Statistical analysis of test data
- Charts plotting test results versus lab code
Samples, test instructions and data report forms are distributed electronically to each participant on the date samples are distributed. Labs have approximately 8 weeks to submit test data with the final statistical summary reports being electronically distributed in approximately 25 business days.
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