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5. Choice of protection specifications according to content
Matching the protection to the contents is a key factor in the expected performance of a metal box. The materials and manufacturing techniques described above offer a very wide range of possibilities. In making their decisions, manufacturers also rely on a wealth of experimental data based on tests under real-life conditions.
5.1 Selection criteria
The choice of an optimum protection specification must take into account a variety of criteria, including the following:
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the corrosiveness of the contents, including
acidity,
the presence of sulfur ;
content sensitivity (color, taste) when interacting with...
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Choice of protection specifications according to content
Future prospects
Economic data
For France, the values are as follows:
— cans for preserves and beverages 7 billion cans/year
— metal used 600,000 tonnes/year
— varnishes and coatings 25,000 tonnes/year
Bibliography
Regulations
As materials intended to come into contact with foodstuffs, varnishes must comply with the relevant regulatory requirements.
At present, we mainly take into account :
european regulations ;
French texts ;
American regulations.
European regulations
...
Organization
Center technique de la conservation des produits agricoles, CTCPA.
Manufacturers
Metal packaging manufacturers
Crown Cork/Carnaud metal box
Férembal
Impress Metal Packaging SA
Massilly France
Continental Can France
Nacanco SA
Varnish manufacturers
Holden Europe
PPG Industries Packaging Coatings
...
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