Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 3. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns
Tests for electric cables under fire conditions. Circuit integrity. Part 1. Test method for fire with shock at a temperature of at least 830 °C for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter exceeding 20 mm
