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Tri Regional Recommendation Page 13 of 24 <br /> Appendix A <br /> 10.PEAKS THAT DO NOT CONFORM to the standards must be reported by the laboratories, including any <br /> unknown complex mixtures that elute at times which vary from the standards. These mixtures may not compare <br /> to the standards and may not be readily identified;however,they are to be reported. At the discretion of the LIA <br /> or the Regional Board the following information is to be contained in the laboratory report: <br /> • The relative retention time for the unknown peak(s)relative to the reference peak in the standard; <br /> • Copies of the chromatogram(s); <br /> • Type of column used; <br /> • Initial temperature; <br /> • Temperature program in degrees Celsius per minute; and <br /> • Final temperature. <br />