State system for ensuring the uniformity of measurements. Nanometer range relief measures with trapezoidal profile of elements. Methods for verification
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Part 4. Resistance of earth connection and equipotential bonding
Aviation fuels and petroleum distillates. Determination of aromatic hydrocarbon types by high performance liquid chromatography method with refractive index detector
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