NF T70-630-12*NF EN 13630-12:2003 Explosives for civil uses - Detonating cords and safety fuses - Part 12 : determination of burning duration of safety fuses
2003NF T70-630-12*NF EN 13630-12:2003 Explosives for civil uses - Detonating cords and safety fuses - Part 12 : determination of burning duration of safety fuses