ISO 1119 Geometrical product specifications (GPS) - Series of conical tapers and taper angles
ISO 17677-1 Resistance welding - Vocabulary - Part 1: Spot, projection and seam welding*, 2021-01-31 Update
ISO 286-2 Geometrical product specifications (GPS) - ISO code system for tolerances on linear sizes - Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts; Technical Corrigendum 1
ISO 5182 Resistance welding - Materials for electrodes and ancillary equipment
ISO 5821 Resistance welding - Spot welding electrode caps
ISO 5822 Spot welding equipment; taper plug gauges and taper ring gauges
BS ISO 20168:2016 history
2016BS ISO 20168:2016 Resistance welding. Locking tapers for electrode holders and electrode caps