Typical O&G levels we run are 5 mg/L to 200 mg/L. What do you recommend, the 47mm or 90mm funnel system?

We recommend the 47 mm setup for most samples. The 90 mm discs are typically only needed for samples with high amounts of particulates in the sample. Normal suspended solids usually won\'t interfere. Only if there is a measurable layer of settleable solids would you need the larger discs.

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