Normas ISO

Acoustics -- Measurement of sound insulation in buildings and of building elements-- Part 1: Requirements for laboratory test facilities with suppressed flanking transmission

Acoustics and vibration -- Laboratory measurement of vibro-acoustic transfer properties of resilient elements-- Part 2: Dynamic stiffness of elastic supports for translatory motion -- Direct method

Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply -- Specifications-- Part 5: Fitness for purpose of the system

Rapeseed -- Determination of chlorophyll content -- Spectrometric method

Aerospace -- Screws, pan head, internal offset cruciform ribbed or unribbed drive, threaded to head, MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa -- Dimensions

Fluid draughting media-- Part 3: Water-based coloured draughting inks -- Requirements and test conditions