"Concentration of monobutyltin {MBT butylstannane CAS 78763-54-9} per unit volume of the water body [dissolved plus reactive particulate phase]"@en .
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"SDN:P01::CMMS1003" .
"Quantity or mass of the specified analyte contained in a specified volume of an unfiltered sample from any body of fresh or salt water."@en .
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