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Ajn design & Surveying Services ltd |
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Architectural and Building Surveying Services |
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Types of survey There are 3 types of survey for asbestos that can be carried out, depending on the requirement. Type 1 Location and assessment survey (Presumptive survey) The purpose of this type of survey is to locate, as far as reasonably practicable, the presence and extent of any suspect ACM’S in the building and assess their condition. No samples are taken for analysis, all areas of the building will be accessed as far as is reasonably practicable and any martial which can be reasonably be expected presumed to contain asbestos with all materials which are presumed to contain asbestos recorded and assessed. Type 2 Standard sampling, identification and assessment survey (Sampling survey). The same procedures as used in Type 1 survey with samples of all materials that are likely to contain asbestos are taken in a non- destructive manner from all reasonably accessible areas. Samples from each suspected ACM are sent to accredited scientific laboratories for testing to confirm or refute surveyors judgment. If the material sampled is found to contain asbestos other similar Homogenous materials used in the same way in the building can be strongly presumed to contain asbestos.
Type 3 Full access, sampling and identification survey (Pre-demolition / major refurbishment survey) This type of survey is used to locate and describe as far as is reasonably practicable all ACM’s located within the construction of the building and will include intrusion into sealed voids, under floors, in ducts and enclosed spaces and all other more inaccessible areas. A full sampling programme is to be undertaken to identify all possible ACM’s. This type of survey is recommended before building works take place or demolition. Work during surveys frequently involves working close to, or with, asbestos. During inspection and sampling, the area is cordoned off and possible fibre release is minimised to ensure the safety of the surveyors and the building’s users or occupiers. |
