EN 10333:2005 – Steel for packaging – Flat steel products intended for use in contact with foodstuffs, products and beverages for human and animal consumption – Tin coated steel (tinplate)

1 Scope
This document specifies the composition of the base steel used for the production of tinplate for use in direct contact with foodstuffs or products for human and animal consumption as well as the composition of tin used to coat it. Tinplate can be produced with or without an organic coating.
The main examples of use are:
drinks cans,
food cans,
packaging of dry foods,
aerosol cans.
The material should be chosen in accordance with the conditions for its use.
This standard does not apply to categories of steel other than steel for packaging intended for use in contact with foodstuffs, products or beverages for human or animal consumption.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 610, Tin and tin alloys – Ingot tin
EN 10202:2001, Cold reduced tinmill products – Electrolytic tinplate and electrolytic chromium/chromium oxide coated steel
EN 10204, Metallic products – Types of inspection documents
EN 10334, Steel for packaging – Flat steel products intended for use in contact with foodstuffs, products and beverages for human and animal consumption – Non-coated steel (blackplate)
EN ISO 14284, Steel and iron – Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
tinplate
cold-rolled blackplate coated on at least one side with a layer of tin. The mass of the coating can reach up to 15.1 g/m²
3.2
blackplate
See EN 10334
3.3
steel intended for use in contact with foodstuffs
See EN 10334
3.4
passivation
surface treatment designed to improve resistance to oxidation, resistance to sulphurizing and ease of lacquering or printing on the tin coating
3.5
steel for packaging
See EN 10334
3.6
steel for other applications than packaging
See EN 10334
4 Information to be provided by the purchaser
The information, which shall be provided by the purchaser at the time of enquiry and order, shall satisfy the requirements of EN 10202.
NOTE Furthermore, the purchaser can specify the type of oil suitable for food contact to be used when the product is delivered oiled.
5 Dimensions and dimensional tolerances
The nominal dimensions shall be agreed at the time of enquiry and order.
Dimensional tolerances shall meet the requirements of Clause 9 of EN 10202:2001.
6 Requirements
6.1 Base metal
The composition of the base metal shall meet the requirements of EN 10334.
NOTE As described in EN 10202:2001 informative Annex A, tighter limits may be necessary for certain elements particularly for manufacturing reasons.
6.2 Tin coating
The chemical composition of the tin ingot used shall comply with the requirements set down in EN 610 for grade Sn99.85 with the exception of the Pb content, which shall be < 0.010 %. The Pb content of the tin coating shall be ≤ 0,010 %. EN 10333:2005 – Steel for packaging – Flat steel products intended for use in contact with foodstuffs, products and beverages for human and animal consumption – Tin coated steel (tinplate)