Metallurgical analysis equipment, 19th century.
© Science Museum / Science & Society Picture Library
A mahogany cabinet containing blowpipe apparatus for qualitative and quantitative metallurgical analysis by Plattner's method, named after the German metallurgical chemist Karl Friedrich Plattner (1800-1858). Plattner's method of asaying metals involved the use of a mouth blowpipe, a technique first used in mineral analysis by the Swedish metallurgist Baron Axel Frederik Cronstedt (1722-1765) in 1751. The apparatus includes a portable balance.