Specification for 300 telephone channels modulation and demodulation equipment used in middle distance terrestrial analog radio-relay systems

NEPLATNÁ vydána dne 6.10.1992

Performance and test methods of 30 channels pulse code modulation drop/insert equipment at 2048 kbit/s

NEPLATNÁ vydána dne 6.10.1992

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NEPLATNÁ vydána dne 1.1.1978

Insulators for low voltage power lines Part 1:Insulators for low voltage overhead power lines

NEPLATNÁ vydána dne 10.4.1997

Insulators for low voltage power lines Part 2:Strain insulators for overhead power lines

NEPLATNÁ vydána dne 10.4.1997

Insulators for low voltage power lines Part 3:Insulators for low voltage wiring

NEPLATNÁ vydána dne 10.4.1997

Insulators for low voltage power lines Part 4:Insulators for trolley overhead lines

NEPLATNÁ vydána dne 10.4.1997

Classification and code for the hazardous and harmful factors in production process

NEPLATNÁ vydána dne 12.11.1992

Classification and code for the hazardous and harmful factors in process

NEPLATNÁ vydána dne 15.10.2009

Basic testing methods of switches for appliance

NEPLATNÁ vydána dne 12.11.1992