Resources saving. Energy production. Guidance on implementing the best available techniques for improving energy efficiency in thermal energy generation
State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 7. Reference threshold of hearing under free-field and diffuse-field listening conditions
Electric and optical fibre cables. Test methods for non-metallic materials. Part 510. Mechanical tests. Methods specific to polyethylene and polypropylene compounds. Wrapping test after thermal ageing in air
