ACM is an acronym used to describe Asbestos-Containing Material, which, as the name already says, refers to materials that have asbestos in its formulation and composition.
Asbestos is a highly toxic mineral, which can cause a lot of damage to workers, which is why this mineral can only be handled by qualified people and with the appropriate protective materials. These guidelines are even for the qualified person who must collect samples of possible ACMs for laboratory testing.
