Development of steel drum standards in the most in

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The development of steel drum standards in European industrial developed countries

before the 1970s, there were 12 standards and draft standards for closed and open steel drums in Germany. These standards and draft standards were classified according to the names of containers, but these names did not meet the production and demand at that time in terms of container manufacturing. In addition, due to the development of trade and industrial technology, The original standard volume and structure of steel drums have been partially eliminated. Therefore, it is necessary to re classify these packaging containers to formulate standards that meet the market demand and are convenient for selection. At that time, they thought that it was reasonable to classify according to the fixing method of the body and the top cover of the barrel. The barrel body and the top cover of the barrel were permanently connected and could not be removed. The diameter of the feeding port was smaller than the inner diameter of the steel barrel and was defined as the barrel with plug, that is, the closed steel barrel. Open steel drums are defined as those whose barrel body and top cover are fixed with tight roll (closed) and whose top cover can be removed. After the reclassification, the 12 standards and the long-term agreement orders of many old customers of power plants that he had lost on hand were almost 1-chip, and the draft standards were reduced to 2 standards. They combined 14 welded steel drums with different capacities and specifications from 30 liters to 220 liters, reduced diameter steel drums, medium opening steel drums and small opening steel drums, and formulated din:1972 closed end steel drum standard. Tensile, shear compression, zigzag and various high and low temperature experiments can be carried out according to astm/gb/iso/jis/din and other standards. They also combined 18 open end steel drums with different capacities and thicknesses from 25 liters to 216.5 liters, and formulated din:1972 full opening steel drum standard

in the 1980s, with the economic, trade and development of European Community countries, the European Committee for standardization proposed that European standards should support the European community to carry out legislative planning to eliminate the technical barriers to trade mentioned in Article 100 of the Rome treaty whenever possible. In order to enable steel drums manufactured by European Community countries to cross national borders and be reused and repaired in other countries, the European Committee for standardization decided to first classify the 216.5-liter steel drums used the most in the world separately, formulate a draft European steel drum standard and submit it to the European Community countries for discussion. In 1986, the 261st packaging technical committee (cen/tc261) of the European Committee for standardization issued the European standards of pren209:1986 full open steel drums and pren210:1986 closed steel drums (Provisional), which is a major change in the standard classification of steel drums in foreign industrial developed countries

before 1987, Germany deleted 12 steel drums with 14 external specifications from din:1972 standard when revising the standard of closed ended steel drums. In addition to retaining the heavy welded steel drums with an inner diameter of 560mm, which are still valuable in certain fields, it abolished the crimped steel drums with a metric inner diameter of 560mm and a minimum volume of 200 liters, which have been used for many years in China and Europe. They are equivalent to the standard of the American Petroleum Research Institute of 55 US gallon barrels with an inner diameter of 571.5mm, The imported specification with a minimum volume of 216.5 liters is taken as the German din:1988 national standard for closed steel drums. In the revision of steel barrel standard in 1987, the standard classification method of steel barrel was more scientific. They revised din6 from the separated middle opening steel barrel to build a normalization mechanism of order: the 1987 middle opening steel barrel standard, and revised din:1987 necking steel barrel standard from the necked steel barrel he separated. In the process of revising the full open steel barrel, they deleted 16 of the 18 open steel barrel specifications in the original din:1972 full open steel barrel standard, and only incorporated the 160 liter and 200 liter open steel barrel into the din:1987 full open steel barrel standard

in 1999, the European Committee for standardization issued en209:1999 and en210:1999 European steel drum standards to replace pren209:1986 and pren210:1986 (Provisional) standards issued in 1986. These two standards are different from the (Provisional) standards in 1986. They are called European Community directives, which means that these two standards have become mandatory standards in all European Community countries. The European Committee for standardization requires all countries that approve European standards to publish them as national standards if we are also cooperating with major domestic manufacturers such as Goldwind and Sinoma to make any changes

in 2000, Germany added DIN mark in front of the European steel barrel standard, making the European steel barrel standard become the German national standard DIN en210:2000. The British added BS to the European steel drum standard, making the European steel drum standard the British National Standard BS en210:2000

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