In the food industry, companies producing canned foods generally use tin plates with both sides coated with 11,2 g / m2 tin. There is a direct correlation between the amount of tin used to coat the tin surface and the corrosion resistance of the can. That is, the more coated tin is present on the surface of the tin plate, the greater the corrosion resistance of the tin. This is a factor that increases the weight of the can, but more importantly, it is a risk for human health due to contamination of foodstuffs to be placed in the can. For this reason, tin coating weight is determined on the tin surfaces in laboratories and it is determined whether the tin used is suitable for the purpose.

While the tin coating weight is determined on both surfaces of the tin, the difference between tin and tin weight is tried to be determined. The tin is dissolved with tin hydrochloric acid on the tin to find the weight of the tin part without tin coating. However, since hydrochloric acid will also corrode the steel parts of the tin, antimony chloride is used as a preservative to prevent this.

Tin coating weight determination studies are applied for electrolytic cans which are coated with tin on both sides evenly. However, if the surfaces of the tin are coated with tin at a different rate, then one of the surfaces is first coated with lacquer and the tin coating is determined on the other surface as described above.

Within the scope of packaging analysis in advanced laboratories, tin tin coating weight is determined separately for each of the lids and bodies in tin cans. These analyzes are based on standards published by domestic and foreign organizations. The standard used in this respect is:

• TS 13718 Cans