The purpose and procedures
used in this survey are the same as for Type 1, except that representative
samples are collected and analysed for the presence of asbestos. Samples from
each type of suspect ACM found are collected and analysed to confirm or refute
the surveyor's judgement.
If the material sampled is found to contain asbestos,
other similar homogeneous materials used in the same way in the building can be
strongly presumed to contain asbestos. Less homogeneous materials will require a
greater number of samples. The number should be sufficient for the surveyor to
make an assessment of whether asbestos is or is not present.
Sampling may take
place simultaneously with the survey, or as in the case of some larger surveys,
can be carried out as a separate exercise, after the Type 1 survey is complete.