sorry I will try to be more helpful, I would not supply a safe ladder use document but just include my use in a risk assessment
i.e. ladder to be placed in a place with natural obstruction to stop rearward slip, also ladder to be placed in a corner to prevent sideways slip, ladder to be 2 meters above flat roof to ensure good hand hold etc, ladder to be secured at top via bungees whatever you deem fit for the job, the list is endless and unless I see the job I could not comment