Sampling instruments for bulk oil shipments and some other liquid bulk cargoes


Fig1. Sampling bottle or can The sampling bottle is suitable for sampling large ships and tanks of liquid oil. It consists of a bottle or metal container, which maybe weighted, attached to a handle long enough to reach to the lowest part to be sampled. It has a removable stopper or top to which is attached a suitable chain, pole or cord. This device is lowered to the various desired depths, where the stopper or top is removed and the container allowed to fill


Fig 3. Go devil’ sampling bottle The ‘Go devil’ sampling bottle consists of a bottle, heavily weighted at the bottom,


approximately 12" (300 mm) long, 3" (75 mm) body diameter and approximately 1" (25 mm) body diameter and approximately 1" (25 mm) neck diameter, with a chain attached. On being placed in oil in a tank it drops so quickly that it does not begin to fill with oil until it reaches a fixed position


Fig2. Sampling tipping dipper The tipping dipper consists of a cylinder approx. 6" (150 mm) long and 2" (50 mm) in diameter, carrying an extension with a hole at its closed end and a stout wire handle at the open end; the handle carries a small metal catch and a rope. The cylinder is inverted in the position shown on the left, and maintained in that position by the insertion of the catch into the hole, and then sunk into the oil in the tank; at the required depth the rope is twitched to release the catch, where upon the cylinder rights itself and becomes full of oil


Fig 4. Bottom sampler or zone sampler


The bottom sampler or zone sampler is suitable for withdrawing bottom samples or zone samples at any level from tanks of liquid oil. To withdraw a bottom sample the apparatus is attached to a cord or chain and lowered empty to the bottom of the tank, when the central spindle valve automatically opens and the container fills from the bottom. On withdrawal of the sampler the valve automatically closes again To withdraw samples at any level the apparatus is lowered empty to the required level and then, by means of an additional cord attached to the top of the central valve spindle, the valve may be opened and the container filled. When the sampler has filled, the valve is allowed to close and the container is withdrawn


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