Fruits, vegetables and derived products — Decomposition of organic matter prior to analysis — Wet method
NORMA vydaná dňa 1.2.1979
Označenie normy: ISO 5515:1979
Dátum vydania normy: 1.2.1979
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: The method consists in heating a test portion until all organic matter is decomposed and a clear solution is obtained, either with sulphuric acid and nitric acid and in certain cases with hydrogen peroxide, or with sulphuric acid and nitric acid with the addition of perchloric acid.