Fire fighting equipment. The small size cylinders for breathing apparatuses and escape respirators with compressed air (compressed oxygen). General technical requirements. Test methods
Safety in emergencies. Technogenic crashes and catastrophes. Standardized metrological and accuracical characteristics of control means and testing means used in complicated technical systems, forms and procedures of their metrological service. General statements and rules
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
€25
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