Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Part 2-3. Immunity requirements for mains communications equipment and systems operating in the range of frequencies 3 kHz to 95 kHz intended for use by electricity suppliers and distributors
Liquid petroleum products. Unleaded petrol. Determination of organic oxygenate compounds and total organically bound oxygen content by gas chromatography method using the oxygen flame-ionization detector (O-FID)
Residual current operated circuit-breakers without integral overcurrent protection for house and similar uses (RCCB`s). Part 2-2. Applicability of the general rules to RCCB's functionally dependent on line voltage
