GOST 17168-1982 Filters electrical octave and third-octave. General technical requirements and methods of testing
GOST 17187-1981 Sound level meters. General technical requirementsand methods of testing
GOST 26918-1986 history
2013GOST 32203-2013 Railway rolling stock. Acoustics. Measurement of outward noize
1986GOST 26918-1986 Noise. Noise-measuring techniques for railway transport
GOST 26918-1986 Noise. Noise-measuring techniques for railway transport was changed to GOST 32203-2013 Railway rolling stock. Acoustics. Measurement of outward noize.