Type 1 : Presumptive Survey
In this type of survey no actual sampling is carried out, so there is no positive identification of ACMs. However, the purpose of the survey is to locate, as far as reasonably practicable, presumed ACMs and assess the extent to which they were used and their condition. In this case, you may find that you are bearing the cost for managing materials that do not contain asbestos, as you are presuming that any material, which can reasonably be expected to contain asbestos, does so, and treating it as such for future work. In this case you can only exclude materials if you are completely confident that they do not contain asbestos ie glass, metal or wood (although asbestos may be hidden by them).