Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 4. Resistance of earth connection and equipotential bonding
State system for ensuring the uniformity of measurements. Standard reference data. Molybdenum. The parameters of the crystal lattice. Coefficient of linear thermal expansion in the temperature range from 90 K to 350 K
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