**What is BS 1728-20 – Aluminium and aluminium alloys about?**

BS 1728-20 standard is a part of the BS 1728 series that discusses the determination of lead using the atomic absorption method for the analysis of aluminium and aluminium alloys. Aluminium alloys are widely used in engineering structures and components requiring lightweight or corrosion resistance.

**Who is BS 1728-20 – Aluminium and aluminium alloys for?**

BS 1728-20 on lead applies to:

Manufacturer of lead and aluminium alloys
Quality testing personnel
Design engineers
Manufacturer of batteries

**Why should you use BS 1728-20 – Aluminium and aluminium alloys?**

Aluminium alloys are widely used in engineering structures and components requiring lightweight or corrosion resistance. 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 1728-20 provides you with the principles of lead using the atomic absorption method in which the sample is dissolved in a mixture of nitric and hydrochloric acids and evaporated to a low volume. After filtration, the solution is diluted to a suitable volume and the lead content is determined by atomic absorption spectrophotometry. The method is recommended for lead contents between 0.01 and 1 %.

BS 1728-20 exemplifies the lead using the atomic absorption method for the analysis of aluminium and aluminium alloys.

BS 1728-20:1971

Methods for the analysis of aluminium and aluminium alloys - Determination of lead (atomic absorption method)

Current

Published:

30 Jul 1971