دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

system 11: a type of tap sampling system found on liquid storage tanks. The permanently installed taps on the out- side of the tank are attached to pipes and a floating boom inside the tank that rises and falls with the liquid level.

n: see measurement ticket. delivery tube n: a small device used inside a bottle when tap sampling. The tube al- lows for the delivery of liquid from the tank into the bottle with little or no splashing.

n: in tank sampling, withdrawing liquid samples through sample taps, at least three of which should be placed equidistant throughout the tank height and extending at least 3 feet (1 metre) inside the tank shell. A standard V4- inch (O.64-centimetre) pipe with suitable valve is satisfactory.