The types of surveys recognised by the enforcing authorities are:
1. Presumptive Survey
The location of asbestos materials within a building are registered and monitored within the survey, although this is seen as a less accurate form of surveying.
Because no sampling occurs there is a very real possibility that materials that do not contain asbestos are managed as if they do. Over time this would make management of materials very expensive, as prior to any work within the fabric of the building, the materials would need to be sampled by a UKAS Accredited Laboratory.
2. Standard Sampling or Non Destructive Survey
This expands further from a type 1 survey by sampling and identifying materials through analysis. This is the most recognizable survey within the industry at present and can provide the corner stone for the asbestos management plan.
3. Destructive Survey or Pre-Demolition / Major Refurbishment Survey
This requires a thorough survey of all materials within the building regardless of how accessible they are. This must be undertaken prior to any destructive work on the building to prevent the uncontrolled spread of asbestos materials