Normas ISO

Acoustics -- Attenuation of sound during propagation outdoors-- Part 2: General method of calculation

Geometrical Product Specifications (GPS) -- Surface texture: Profile method -- Metrological characteristics of phase correct filters

Aerospace -- Nuts, hexagonal, plain, reduced height, normal across flats, with MJ threads, classifications: 450 MPa (at ambient temperature) /120 degrees C, 450 MPa (at ambient temperature) /235 degrees C, 600 MPa (at ambient temperature) /425 degrees C, 900 MPa (at ambient temperature) /235 degrees C, 900 MPa (at ambient temperature) /315 degrees C, 900 MPa (at ambient temperature) /650 degrees C, 1 100 MPa (at ambient temperature) /235 degrees C, 1 100 MPa (at ambient temperature) /730 degrees C and 1 250 MPa (at ambient temperature)/600 degrees C -- Dimensions

Plastics -- Amine epoxide hardeners -- Determination of primary, secondary and tertiary amine group nitrogen content

Optics and optical instruments -- Microscopes -- Graticules for eyepieces

Soft soldering fluxes -- Test methods-- Part 13: Determination of flux spattering