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Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 6. Residual current operated protective devices in TT, TN and IT systems
Document status: Active
Broaches with diameter from 55 to 130 mm for slitting holes with involute profile with round tail and centering at outside diameter with module from 3 to 5 mm. Construction
Document status: Active
Three- and four-axle bogies of freight cars. Acceptance rules and test methods
Document status: Active
Copper-phosphorus alloys. Method for the determination of bismuth
Document status: Active
Cobalt. Method for the determination of carbon
Document status: Replaced by GOST 13047.6-2002