The small-x contributions to the Bjorken sum rule within unified picture ln2x + LO DGLAP for different input parametrisations g1NS(x,Q02) are presented. Theoretical predictions for \int \nolimits 00.003 g1NS(x,Q2=10) dx are compared with the SMC small-x data. Rough estimation of the slope \lambda , controlling the small-x behaviour of g1NS\sim x-\lambda from the obtained results and SMC data is performed. The crucial role of the running coupling \alpha s=\alpha s(Q2/z) at low-x is taken into account.
PACS numbers: 12.38.Bx
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