If you need help with implementation you can consult with https://www.bsigroup.com/en-GB/consultancy-services/
BS 4952 is available for download in PDF format from the British Standards Institution (BSI) website or other authorized distributors. The PDF version of the standard provides a convenient and easily accessible format for users. bs 4952 pdf
You can find more information about BS 4952 at https://www.bsigroup.com/ If you need help with implementation you can