Asbestos Survey Types Minimize

Type 1: Location and assessment survey (presumptive survey).

The purpose of the survey is to locate, as far as reasonably practicable, the presence and extent of any suspect Asbestos Containing Materials in the building and assess their condition. This survey essentially defers the need to sample and analyse for Asbestos until a later time. The duty holder bears potential additional costs of management for some non-asbestos containing materials. All areas should be accessed and inspected as far as reasonably practicable. (eg above false ceilings and inside risers, service ducts, lift shafts etc) or must be presumed to contain Asbestos until proven different.

Type 2: Standard sampling, identification and assessment survey (sampling survey)

The purpose and procedures used in this survey are the same for Type 1, except that representative samples are collected and analysed for the presents of Asbestos. Samples from each type of suspected ACM found are collected and analysed to confirm or refute the surveyor’s judgment. The number of samples should be sufficient for the surveyor to make an assessment of whether Asbestos is or is not present. Sampling is normally carried out simultaneously with the survey, or can be carried out as a separate exercise, after a Type 1 survey has been carried out.

Type 3: Full access sampling and identification survey (pre-demolition/major refurbishment surveys)

This type of survey is used to locate and describe, as far as reasonably practicable, all ACM’s in the building and may involve destructive inspection, as necessary, to gain access to all areas, including those that may be difficult to reach. A full sampling programme is undertaken to identify possible ACM’s and estimates of volume made. The survey is designed to be used as a basis for tendering the removal prior to demolition or major refurbishment.