What is BS 1728-21 – Aluminium and aluminium alloys about?
BS 1728-21 is a British standard and a part of the BS 1728 series that discusses the zinc using atomic absorption method for the analysis of aluminium and aluminium alloys. Aluminium alloys are widely used in engineering structures and components where light weight or corrosion resistance is required.
Who is BS 1728-21 – Aluminium and aluminium alloys for?
BS 1728-21 on zinc applies to:
- Manufacturer of zinc and aluminium alloys
- Quality testing personnel
- Design engineers
Why should you use BS 1728-21 – Aluminium and aluminium alloys?
Aluminium alloys are widely used in engineering structures and components where light weight or corrosion resistance is required. Atomic absorption is an analytical technique used to determine how much of certain elements are in a sample. It uses the principle that atoms (and ions) can absorb light at a specific, unique wavelength.
BS 1728-21 provides you with the principle in which the sample is dissolved in hydrochloric acid and diluted to a suitable volume and the zinc content is determined by atomic absorption spectrophotometry. The method is recommended for zinc contents between 0.005 and 0.20 %.
BS 1728-21 exemplifies the zinc using atomic absorption method for the analysis of aluminium and aluminium alloys.
