Normas ISO

Acoustics -- Measurement of sound insulation in buildings and of building elements-- Part 3: Laboratory measurements of airborne sound insulation of building elements

Acoustics -- Measurement of sound insulation in buildings and of building elements-- Part 2: Determination, verification and application of precision data

Wool -- Determination of fibre diameter -- Projection microscope method

Technical drawings -- General principles of presentation-- Part 30: Basic conventions for views

Rubber, natural latex concentrate -- Determination of KOH number

Plastics -- Phenol-formaldehyde mouldings -- Determination of free ammonia and ammonium compounds -- Colorimetric comparison method