BS EN IEC 60332-3-23:2018 Tests on electric and optical fibre cables under fire conditions Test for vertical flame spread of vertically-mounted bunched wires or cables. Category B - European Standards
IEC 60332 - Test on electrical cables under fire conditions
IEC 60332-3-24 Ed. 2.0 b:2018 - Tests on electric and optical fibre cables under fire conditions - Part 3-24: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category C