| VCSB Oxygenate Content in Gasoline Precision Demonstration [PBMS0003: OMB Control Number #2060-0731, EPA ICR number 2607.02: Expires 1/31/2024] |
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| Oxygenate Content in Gasoline Precision Criterion (§1090.1365(b)) - The maximum allowable standard deviation computed from results of a minimum of 20 tests made over 20 days on samples using good laboratory practices taken from a single homogenous commercially available gasoline must be less than or equal to 0.3 times the Reproducibility (R), where "R" equalts the ASTM reproducibility of ASTM D5599-18 (IBR 1090.95(c)(24)), where R = 0.13*X0.83, where X is the mass percent of measured oxygenate. You may make up to 4 separate measurements in a 24-hour period, as long as the interval between measurements is at least 4 hours. Example: A 3 mass percent oxygenate concentration in gasoline sample: maximum allowable standard deviation of 20 tests less than or equal to 0.3*(0.32 mass percent oxygenate)=0.097 mass percent oxygenate. |
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| Is Oxygenate Content in Gasoline Precision Criterion Met? |
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| VCSB Oxygenate Content in Gasoline Accuracy Demonstration [PBMS0003:OMB Control Number #2060-0731, EPA ICR number 2607.02: Expires 1/31/2024] |
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| VCSB Method Defined Criterion - The regulated party is utilizing the applicable ASTM D6708-19a (IBR 1090.95(c)(33)) assessment adjudicated by a Voluntary Consensus-based Standards Body (VCSB), such as the American Society for Testing and Materials International (ASTM International), demonstrates whether the comparison between the method-defined alternative test method and the EPA referee test method is a "null" result or whether a correlation equation needs to be applied that predicts EPA referee test method results, that is ASTM D5599-18 (IBR 1090.95(c)(24)), from the applicable method-defined alternative test method (see 1090 CFR 1365(d)). |
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| Has the 1090.1365(d) criterion been met? (Note: Please answer by typing "Yes" or "No" in the adjacent cell.) |
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| If ASTM D6708 assessment between the candidate alternative test method and EPA referee test method, ASTM D5599-18, yields a "null" comparison, indicate so by typing not applicable. If the ATM D6708 assessment yields the need for a correlation equation, indicate the correlation equation needed for reporting purposes the regulatd party lists the correlation equation used for reporting purposes if warranted by the ASTM D6708-19a (IBR 1090.95(c)(33)) assessment comparing voluntary consensus-based standard body alternative test method to EPA referee test method, ASTM D5599-18 (see 1090 CFR 1365(d)). |
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