Chromium ores — Determination of phosphorus content — Reduced molybdophosphate photometric method
NORMA vydaná dňa 1.3.1981
Označenie normy: ISO 6127:1981
Dátum vydania normy: 1.3.1981
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: The method is applicable to products having a phosphorus content of 0,002 to 0,1 % (m/m). ISO 6127 should be read in conjunction with ISO 6629. Specifies principle, reagents, apparatus, procedure and expression of results. Includes a warning to the dangers involved in the use of perchloric acid and hydrofluoric acid.