Standard Practice for Manual Sampling of Petroleum and Petroleum Products| maximum fill density (reduced fill density), middle sample, multiple tank composite sample, outage tube (internal), portable manual sampling unit, PSU, primary sample container, representative sample, running sample, sample, sample containers, sample handling, sample labeling, sample mixing, sample shipment, sampling, sampling cage, spot sample, standpipes, static sampling, suction sample (outlet), sump sample, surface (skim) sample, tank composite sample, tap sample, tap sampling, test specimen, top sample, tube or thief sample, tube sampling, upper sample, volumetric composite sample, zone sample, automatic sampler, all-levels sample, boring sample, boring sampling, bottle/beaker sampling, bottom sample, bottom water sample, clearance sample, composite sample, core sample, core thief spot sampling, dead bottom sample, deck composite sample, dipper sample, dipper sampling, dissolved water, drain sample, emulsio