Normas ISO

Manganese ores and concentrates -- Determination of copper content -- Extraction-spectrometric and spectrometric methods

Manganese ores and concentrates -- Determination of phosphorus content -- Extraction-molybdovanadate photometric method

Methods for the assessment of departure from roundness -- Measurement by two- and three-point methods

Methods for the assessement of departure from roundness -- Measurement of variations in radius

Geometrical Product Specifications (GPS) -- Surface texture: Profile method -- Terms, definitions and surface texture parameters

Phosphoric acid for industrial use -- Guide to sampling techniques