A collection of featured documents from our library that are popular among our users or otherwise noteworthy.
Financial services - Personal Identification Number (PIN) management and security - Part 4: Requirements for PIN handling in eCommerce for Payment Transactions
Financial services - Personal identification number (PIN) management and security - Part 5: Methods for the generation, change, and verification of PINs
Two-wheeled motorcycles - Parking stability of side- and centre-stands
Cinematography - Background acoustic noise levels in theatres, review rooms and dubbing rooms
Implants for surgery - Non-destructive testing - Radiographic examination of cast metallic surgical implants
Escalators -- Building dimensions
Corrosion of aluminium alloys - Determination of resistance to stress corrosion cracking
Pepper (Piper nigrum L.), whole or ground - Specification - Part 1: Black pepper
Pepper (Piper nigrum L.), whole or ground - Specification - Part 2: White pepper
Cement - Test methods - Determination of setting time and soundness
Copper, lead, zinc and nickel sulfide concentrates - Determination of hygroscopic moisture content of the analysis sample - Gravimetric method
Approval testing of welders -- Fusion welding -- Part 3: Copper and copper alloys
Approval testing of welders -- Fusion welding -- Part 4: Nickel and nickel alloys
Approval testing of welders - Fusion welding - Part 5: Titanium and titanium alloys, zirconium and zirconium alloys
Paints and varnishes - Protective coatings for concrete structures - Part 1: General introduction
V-belts and V-ribbed belts - Uniformity of belts - Test method for determination of centre distance variation
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
Textile machinery and accessories - Rings and travellers for ring spinning and ring twisting frames - Part 1: Flange rings T and SF and their travellers
Acoustics - Characterization of sources of structure-borne sound with respect to sound radiation from connected structures - Measurement of velocity at the contact points of machinery when resiliently mounted
Acoustics - Determination of occupational noise exposure - Methodology
Acoustics - Attenuation of sound during propagation outdoors - Part 1: Calculation of the absorption of sound by the atmosphere
Acoustics - Attenuation of sound during propagation outdoors - Part 2: Engineering method for the prediction of sound pressure levels outdoors
Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 1: Measurement at discrete points
Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning
Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method for measurement by scanning