The Health and Safety Executive have produced a new Code of Practice dealing with workplaces. It is supplementary to the Workplace (Health, Safety and Welfare) Regulations 1992.
With the abolition of the action for breach of statutory duty the guidance given in these Codes provide material as to the standards to which employers should be operating.
It can be downloaded from http://www.hse.gov.uk/pubns/books/l24.htm
For a consideration of the importance of risk assessments see https://accidentsatworkandlossofearningsclaims.wordpress.com/2013/11/02/risk-assessments-accidents-at-work-lawyers-need-to-get-practical-knowledge-your-guide-to-how-where/
For discussion of guidance dealing with slips and trips (still the most common accidents in workplaces) see https://accidentsatworkandlossofearningsclaims.wordpress.com/2013/10/28/slips-trips-health-and-safety-executive-guidance/