Aerospace series. Steel FE-PM3901 (X15CrNi17-3). Air melted. Hardened and tempered. Bar for machining. De $3L 200 mm. 900 MPa $3L Rm $3L 1100 MPa— 10 стр.
Safety of machinery. Reduction of risk to health from hazardous substances emitted by machinery. Methodology leading to verification procedures— 14 стр.
Safety of machinery. Pressure sensitive protective devices. General principles for the design and testing of pressure sensitive mats and pressure sensitive floors— 56 стр.
Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane— 40 стр.