BS EN 12441-4 is a European standard and a part of the BS EN 12441 series that discusses the spectrophotometric method for zinc and zinc alloys. Zinc (Zn) is used to make several alloys due to its galvanizing and sacrificial properties.
BS EN 12441-4 specifies a spectrophotometric method for the determination of iron in zinc alloys. It is applicable to the products specified in EN 1774 and EN 12844.
BS EN 12441-4 on iron in zinc alloys applies to:
Spectrophotometry is a method to measure how much a chemical substance absorbs light by measuring the intensity of light as a beam of light passes through a sample solution. The basic principle is that each compound absorbs or transmits light over a certain range of wavelengths. Layers of iron-zinc alloy are formed on the surface, topped with an outer layer of zinc. Objects so treated range from small nuts and bolts to steel window frames and large girders used in construction.
By applying BS EN 12441-4 standard, you would be provided with the guidance of iron in zinc alloys. This helps you with the corrosion protection of iron and steel. BS EN 12441-4 also provides you with the procedure like test portion, preparation of the test solution, calibration graph and spectrophotometric measurement that helps you in the manufacturing of zinc and zinc alloys product in a standardized manner.
With obedience and compliance to BS EN 12441-4, you can efficiently conduct the spectrophotometric method for the zinc and zinc alloys.
EN 12441-4:2003