Section 3175.119 - Components to analyze(a) The gas must be analyzed for the following components:(b) When the concentration of C6+ exceeds 0.5 mole percent, the following gas components must also be analyzed: (c) In lieu of testing each sample for the components required under paragraph (b) of this section, the operator may periodically test for these components and adjust the assumed C6+ composition to remove bias in the heating value (see § 3175.126(a)(3) ). The C6+ composition must be applied to the mole percent of C6+ analyses until the next analysis is done under paragraph (b) of this section. The minimum analysis frequency for the components listed in paragraph (b) of this section is as follows: (1) For high-volume FMPs, once per year; and(2) For very-high-volume FMPs, once every 6 months.