Frequent Questions

Must batch numbers be assigned in both numerical and chronological order?

Batch numbers should be assigned in numerical and chronological order of production (not shipment). If a batch of gasoline must be re-blended because it is out of specification, and an independent laboratory has already sampled the batch, the resulting batch must be assigned a new ID. The volume of the original batch ID should then be reported to EPA as zero. If an independent lab has not sampled the original batch, the refiner may retain the original batch number. In either case, the refiner should ensure that records are kept on the nature of the contamination, corrective measures and original and subsequent sampling and testing.(7/1/94)

This question and answer is posted at http://www.epa.gov/otaq/regs/fuels/rfg/qa/420r03009.pdf. The original was posted in the Q&A posted on 7/1/94 which can found at http://www.epa.gov/otaq/rfg_qa.htm" See Question ID 3857 for RFG (Taken from the first question on http://www.epa.gov/otaq/regs/fuels/rfg/qa/420r03009.pdf)
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