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Plastic barrels that are commonly seen on American roadways today began emerging in the late 1970s and 1980s; steel 55-gallon drums were largely phased out by the 1990s, [4] with an outright prohibition on using metal drums appearing in the third revision of the 1988 Edition of the MUTCD, published in September 1993. [5]
Many drums nominally measure just under 880 millimetres (35 in) tall with a diameter just under 610 millimetres (24 in), and have a common nominal volume of 208 litres (55 US gal) whereas the barrel volume of crude oil is 42 US gallons (159 L). In the United States, 25-US-gallon (95-litre) drums are also in common use and have the same height.
A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater flows for basic sewage treatment. [2] Settling and anaerobic digestion processes reduce solids and organics, but the treatment efficiency is only moderate (referred to as "primary treatment"). [2]
This page was last edited on 18 September 2014, at 21:08 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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A ton container is a steel, cylindrical barrel equivalent in length and diameter to two stacked 55-gallon drums. A ton container weighs approximately 1,600 pounds and measures nearly seven feet in length. [1] The United States Army has used ton containers to store and ship bulk chemicals, including chemical agent, since the 1930s.
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