(a) General. We recommend that you design your SVOC batch sampler to extract sample from undiluted emissions to maximize the sampled SVOC quantity. To the extent practical, adjust sampling times based on the emission rate of target analytes from the engine to obtain analyte concentrations above the detection limit. In some instances you may need to run repeat test cycles without replacing the sample media or disassembling the batch sampler.
CFR 40-1065.1105-2014 history
2014CFR 40-1065.1105-2014 Protection of Environment. Part1065:Engine-testing procedures. Section1065.1105:Sampling system design.