This standard specifies the measurement and calculation of mechanically active substances in railway internal combustion and electric locomotives.
GB/T 7181-2000 history
2000GB/T 7181-2000 Measurement of mechanical active substances in railway locomotives
GB/T 7181-2000 Measurement of mechanical active substances in railway locomotives was changed to TB/T 3165-2007 Method for determination of mechanically active substances in railway locomotives.