English to Russian Tech/Engineering Chemistry; Chem Sci/Eng

AASHTO T 240-13
Electronic Level (Optional)—A precision level for measuring the levelness of the support
provided by the circular openings in the metal carriage. The length shall be at least 125 mm (5 in.),
and the width shall be 30 ± 3 mm (1.2 ± 0.1 in.). The bearing surface of the level shall be ground
flat. Resolution, accuracy, and repeatability shall be ±0.1 degree. The level shall have a hold
button freeze so that the level can be read after removing the level from the carriage.