Thank you for your new question and for asking for me.
1) The state labs in Oklahoma have reference manuals that describe the testing process and proper levels, they are not digital, thus you have to actually subpoena the manuals from them as these are the guidelines the state police labs use. The empirical data you are finding online are based on test data and are admissible as evidence as well, but you need to engage an expert to testify to have them admitted in the court
and you cannot just admit the test results without proper foundation and authentication by an expert witness.
2) The OK lookback period is 10 years from “the point in time when the licensee begins to suffer the actual loss of driving privilege or from the imposition of restrictions on the driving privilege.” Not the date the person was arrested or convicted for the previous charge, even if those prior events happened outside of the 10 year look back period. See: Jobe v. State ex rel. Dept. of Public Safety, 2010 OK 50, (2010).
I am afraid that even though charges were deferred and they do not appear on a person's record, for purposes of subsequent convictions they can be used as prior offenses still.
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