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Electric-contact method of surface hardening of details. Typical technological process
Document status: Active
Safety of household and similar electrical appliances. Part 2.34. Particular requirements for motor-compressors
Document status: Cancelled
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering methods for an essentially free field over a reflecting plane
Document status: Active
State system for ensuring the uniformity of measurements. pH-meters. Verification procedure
Document status: Active
