State system for ensuring the uniformity of measurements. Measuring instruments of heat energy hot-water heating systems. Metrological assurance. Main principles
Refractory products with less than 45 % true porosity. Method for determination of compressive strength at room temperature. Part 2. Test with packings
Electric and optical fibre cables. Test methods for non-metallic materials. Part 401. Miscellaneous tests. Thermal ageing methods. Ageing in an air oven
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