canister
A canister (from Latin canistrum '(plaited) basket', 'braided container'; derived from Latin canna 'reed', 'small, thin pipe') is a container for storing and transporting liquids or, more rarely, bulk goods ( e.g. blasting media ).
material
In the past, canisters were made almost exclusively of metal , today they are mostly made of plastic . They have one or more locks and handles. Depending on the type of goods to be stored, canisters must have special official approvals and meet certain safety standards .
Not all canisters are suitable for every content: Petrol cans, if made of plastic, are made of those that are unsuitable for food because of chemical reactions. The plastic of food canisters, in turn, can possibly be dissolved by harsh cleaning agents. Therefore, canisters are designed and manufactured for specific areas of application.
shape
Canisters are optimized for practical storage and transport of the largest possible quantities; this results in a relatively uniform (usually cuboid) design with lock and handle. Thanks to the cuboid shape, they can be stacked to save space. The stackability is partly supported by knobs on the top and matching recesses on the bottom. Due to the design, there are maximum stacking limits.
The Schwelmer Eisenwerk canister was largely made by OIng. Vinzenz Grünvogel, who thus implemented the requirements of the German Wehrmacht: A soldier should be able to carry two full canisters, but also four empty ones - that's why the canister was equipped with the triple handle. The canister should be quick to fill and quick to empty; hence the clip lock with a large opening and the ventilation pipe. A hole attached to the clip lock offered the possibility of sealing.
When filled, it should be able to fall from the height of a transport vehicle without being damaged; hence the reinforcement beads . The inside of the canister has been dip-coated to protect it from corrosion. Large "Weinberg presses" were available for production, in which the two canister halves were deep-drawn before welding.
Areas of application
There are the following areas of application:
- Operating materials: Oil, diesel, gasoline, tensides (cleaning agents), alkalis, acids, alcohols, distilled water
- Food: juice, wine, water, oil
Wehrmacht standard canister
A 20-liter Wehrmacht standard canister developed for the German Wehrmacht after a tender in 1936 by the company Eisenwerke Müller & Co. in Schwelm / Westphalia under the direction of Vinzenz Grünvogel was further developed by the company Ambi-Budd in Berlin-Johannisthal in 1937 and by several Manufactured in large numbers by manufacturers in many countries. It was also copied and adopted by the Allies. The term Jerrycan in English, Dutch and Norwegian for these classic tin cans is derived from this, based on the ethnophaulism Jerry together with Can for canister.
Labelling
In many cases, regulations require appropriate labeling, for example
- the permanently affixed label "only for food",
- appropriate labeling ,
- color coding that is understandable in the area (e.g. the Bundeswehr regulation that drinking water is stored exclusively and exclusively in canisters with a white cap or a white St. Andrew's cross on both sides of the canister).
Differentiation of operating materials according to the Bundeswehr-ZDv 42/10. The middle handle colored.
| petrol | red |
| diesel | blue |
| mixture | yellow (ratio also indicated) |
| petroleum | green |
| Heating oil | yellow / black striped |
- Yellow or red St. Andrew's crosses on the canister indicate flammable liquids.
literature
- Dieter K. Franke: VAG manual, Do it yourself, used car purchase-accessory installation-care. 1st edition, ADAC Verlag GmbH, Munich 1984, ISBN 3-87003-227-8 .
