Roofing and hydraulic-insulating flexible bitumen-based and polymeric (thermoplastic or elastomer) materials. Method for determination of water vapour transmission properties
State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of alternating current from 1·10 -8 to 100 A in the frequency range from 1·10 -1 to 1·10 6 Hz
The best available techniques. Procedure of the selection and appointment of experts for assessment of the best available techniques. General requirements
