ðə pɹˈɑːsɛs wʌz stˈɛpt ˌʌp ɪn nˈaɪntiːnhˈʌndɹɪd twˈɛnti θɹˈiː, wˌɛn ðə noːɹwˈiːdʒən jˈuːniən ʌv bˈɪldɪŋ ˈɪndʌstɹi wˈɜːkɚz, noːɹwˈiːdʒən jˈuːniən ʌv kˈɛmɪkəl ˈɪndʌstɹi wˈɜːkɚz, noːɹwˈiːdʒən jˈuːniən ʌv fˈuːd, bˈɛvɚɹɪdʒ ænd ˈælaɪd wˈɜːkɚz, ænd noːɹwˈiːdʒən jˈuːniən ʌv tˈɛkstaɪl wˈɜːkɚz wɜːɹ ˈɔːl splˈɪt ˈaʊt.
The process was stepped up in 1923, when the Norwegian Union of Building Industry Workers, Norwegian Union of Chemical Industry Workers, Norwegian Union of Food, Beverage and Allied Workers, and Norwegian Union of Textile Workers were all split out.